WO2022119231A1 - Display assembly comprising active key area, and electronic device comprising same - Google Patents

Abstract

According to various embodiments of the present document, an electronic device comprises: a housing; a flexible display disposed inside the housing; an actuator disposed between the flexible display and the housing, and comprising first and second magnetic bodies which generate a repulsive magnetic force and/or an attractive magnetic force so as to extend at least one part of the flexible display; and an elevating member disposed between the flexible display and actuator, and elevating by means of the magnetic force. The flexible display comprises a touch input area which can extend in one direction in accordance with the elevating direction of the elevating member which elevates by means of the repulsive force or attractive force.

Description

Display assembly including key active area and electronic device including same

Embodiments disclosed in this document relate to a display assembly including a key active area and an electronic device including the same.

As the information society develops, demands for electronic devices for displaying images are increasing in various forms. For example, the electronic device is applied to various electronic devices such as a smart phone, a digital camera, a notebook computer, a navigation system, and a smart television.

For example, a keyboard, mouse, or touch screen may be used as the input module of the electronic device. The touch screen may serve as an input device for inputting a user's command by touching the screen with the user's hand or an object.

Recently, an electronic device may be used instead of a physical keypad, such as a keyboard, with a touchable virtual keypad implemented on a display. Since the virtual keypad does not physically protrude, it is difficult for a user to type quickly and accurately without feedback like a physical keypad.

Various embodiments of the present disclosure provide an electronic device including a key active area supporting reliable high-speed input using a physically protrudable keypad in a situation where key input is required.

An electronic device according to an embodiment disclosed in this document includes: a housing; a flexible display disposed in the housing; an actuator disposed between the flexible display and the housing, the actuator including first and second magnetic materials generating at least one of a repulsive force and an attractive force so that at least a portion of the flexible display is extendable; and an elevating member disposed between the flexible display and the actuator and moving up and down by the magnetic force, wherein the flexible display moves in one direction along the lifting direction of the elevating member raised by any one of the repulsive force and the attractive force. It may include an extendable touch input area.

A display assembly according to an embodiment disclosed in this document includes an actuator including first and second magnetic materials disposed to face each other; a lifting member disposed on the actuator and moving up and down by a magnetic force generated between the first and second magnetic bodies; and a flexible display disposed on the elevating member and extending at least a portion of the elevating member by a lifting motion of the elevating member.

According to the embodiments disclosed in this document, an electronic device can provide a sense of reality using a physical keypad by using a protruding keypad in a situation where a key input is required, thereby supporting reliable high-speed input.

In addition, according to the embodiments disclosed in this document, in the electronic device, since keys are disposed independently by being recessed between keys in a situation where key input is required, an unintentional touch input error may be prevented from occurring.

In addition, various effects directly or indirectly identified through this document may be provided.

1 is a block diagram illustrating an electronic device in a network environment according to various embodiments of the present disclosure;

2 is a block diagram illustrating a display device according to various embodiments of the present disclosure;

3 is a block diagram illustrating an electronic device according to various embodiments of the present disclosure;

4A and 4B are diagrams illustrating an electronic device whose shape is changed according to various embodiments of the present disclosure;

5A and 5B are cross-sectional views illustrating a key module assembly included in an electronic device according to various embodiments of the present disclosure;

6A is a perspective view illustrating an electronic device according to various embodiments of the present disclosure, and FIG. 6B is an enlarged view of area A of FIG. 6A .

7A to 7C are diagrams illustrating an arrangement relationship of first and second magnetic materials included in an electronic device according to various embodiments of the present disclosure;

8A is a block diagram illustrating a key module assembly and a key module control unit included in an electronic device according to various embodiments of the present disclosure, and FIG. 8B is a view illustrating the key module assembly shown in FIG. 8A in detail.

9 is a circuit diagram showing a magnetic cell included in the key module assembly according to various embodiments.

10 is a diagram illustrating a key input period and an initialization period included in one frame period in an electronic device according to various embodiments of the present disclosure;

11 is a diagram illustrating an electronic device whose shape has been changed according to various embodiments of the present disclosure;

12A is a cross-sectional view illustrating a key active area in which a key module assembly is disposed and a key non-active area according to an exemplary embodiment; 12B and 12C are diagrams illustrating an arrangement relationship of first and second magnetic materials of an electronic device according to an exemplary embodiment.

13 is a circuit diagram illustrating a magnetic cell included in a key module assembly according to various embodiments.

14A and 14B are diagrams for explaining an operation of a magnetic cell included in a key module assembly according to various embodiments.

15 is a diagram illustrating an operation flowchart of an electronic device according to various embodiments of the present disclosure;

16A to 16E are diagrams illustrating electronic devices according to various embodiments of the present disclosure;

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

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

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.

Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be loaded into the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can operate independently or together with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . A sound may be output through the electronic device 102 (eg, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 . may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with the external electronic device 104 through a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external electronic devices 102 and 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more of the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

2 is a block diagram 200 of a display device 160 according to various embodiments of the present disclosure.

Referring to FIG. 2 , the display device 160 may include a display 210 and a display driver IC (DDI) 230 for controlling the display 210 . The DDI 230 may include an interface module 231 , a memory 233 (eg, a buffer memory), an image processing module 235 , or a mapping module 237 . The DDI 230 transmits, for example, image data or image information including an image control signal corresponding to a command for controlling the image data to other components of the electronic device 101 through the interface module 231 . can be received from For example, according to one embodiment, the image information is the processor 120 (eg, the main processor 121 (eg, an application processor) or the auxiliary processor 123 (eg, an application processor) operated independently of the function of the main processor 121 ( For example, a graphic processing device) The DDI 230 may communicate with the touch circuit 250 or the sensor module 176 through the interface module 231. In addition, the DDI 230 is the At least a portion of the received image information may be stored in the memory 233, for example, in units of frames, for example, the image processing module 235 may store at least a portion of the image data, Pre-processing or post-processing (eg, resolution, brightness, or size adjustment) may be performed based on at least the characteristics of the display 210. The mapping module 237 may perform pre-processing or post-processing through the image processing module 135. A voltage value or a current value corresponding to the image data may be generated. According to an exemplary embodiment, the generation of the voltage value or the current value may include, for example, a property of pixels of the display 210 (eg, an arrangement of pixels). RGB stripe or pentile structure), or the size of each sub-pixel) At least some pixels of the display 210 may be at least partially based on, for example, the voltage value or the current value. By being driven, visual information (eg, text, image, or icon) corresponding to the image data may be displayed through the display 210 .

According to an embodiment, the display device 160 may further include a touch circuit 250 . The touch circuit 250 may include a touch sensor 251 and a touch sensor IC 253 for controlling the touch sensor 251 . The touch sensor IC 253 may control the touch sensor 251 to sense a touch input or a hovering input for a specific position of the display 210 , for example. For example, the touch sensor IC 253 may detect a touch input or a hovering input by measuring a change in a signal (eg, voltage, light amount, resistance, or electric charge amount) for a specific position of the display 210 . The touch sensor IC 253 may provide information (eg, location, area, pressure, or time) regarding the sensed touch input or hovering input to the processor 120 . According to an embodiment, at least a part of the touch circuit 250 (eg, the touch sensor IC 253 ) is disposed as a part of the display driver IC 230 , the display 210 , or outside the display device 160 . may be included as a part of another component (eg, the coprocessor 123).

According to an embodiment, the display device 160 may further include at least one sensor (eg, a fingerprint sensor, an iris sensor, a pressure sensor, or an illuminance sensor) of the sensor module 176 , or a control circuit therefor. In this case, the at least one sensor or a control circuit therefor may be embedded in a part of the display device 160 (eg, the display 210 or the DDI 230 ) or a part of the touch circuit 250 . For example, when the sensor module 176 embedded in the display device 160 includes a biometric sensor (eg, a fingerprint sensor), the biometric sensor provides biometric information related to a touch input through a partial area of the display 210 . (eg fingerprint image) can be acquired. As another example, when the sensor module 176 embedded in the display device 160 includes a pressure sensor, the pressure sensor may acquire pressure information related to a touch input through a part or the entire area of the display 210 . can According to an embodiment, the touch sensor 251 or the sensor module 176 may be disposed between pixels of the pixel layer of the display 210 , or above or below the pixel layer.

3 is a block diagram illustrating an electronic device according to various embodiments of the present disclosure;

Referring to FIG. 3 , an electronic device (eg, the electronic device 101 of FIG. 1 ) may include a processor 320 , a display device 360 , a key module controller 330 , and a key module assembly 340 . .

The processor 320 may be operatively connected to other components in the electronic device (eg, the memory 130 of FIG. 1 , the display device 360 , the key module controller 330 , and the key module assembly 340 ). can The processor 320 may control components of the electronic device. For example, the processor 320 may control the configurations of the electronic device 101 according to at least one or more instructions stored in the memory 130 .

The display device 360 may output various information processed by the electronic device 101 and provide it to the user. For example, the display device 360 may display an image using a display (eg, the display 210 of FIG. 2 ) that can be deformed according to whether or not a physical keypad is used. The display device 360 may include various types of displays (eg, the display 210 of FIG. 2 ).

The display may include a flexible display, and the flexible display may be a display in which at least a portion is flexible. The flexible display may refer to a stretchable display in which at least a portion of the electronic device 101 is extended and protruded or depressed from the remaining areas. For example, as the shape of the electronic device 101 is changed by a user manipulating the electronic device 101 , at least some regions of the flexible display may protrude and/or be depressed than the remaining regions.

The display device 360 may include a touch screen 350 . The touch screen 350 may be an input device that allows a user's command to be input by selecting instructions displayed on the screen of the display with a human hand or an object. Accordingly, when a user's touch input is generated under a physical keypad usage condition, the touch screen 350 may transmit the corresponding touch coordinates to the processor.

The key module assembly 340 may be included in the display device #60 or may be included in the electronic device as a separate configuration from the display device 360 . The key module assembly 340 may perform an operation according to a command of the key module controller 330 .

The key module assembly 340 is disposed under the flexible display and may change the shape of the flexible display according to a command of the key module controller 330 . For example, when the processor 320 detects an input requiring the use of a physical keypad, the key module assembly 340 may change the shape of the flexible display so that at least a portion of the flexible display can protrude to the outside of the flexible display. .

The key module assembly 340 according to an embodiment may include an actuator that generates a magnetic force. The key module assembly 340 may change the shape of the flexible display by a magnetic force generated according to a command of the key module controller 330 .

The key module controller 330 controls the key module assembly 340 by transmitting a control signal and a driving signal to the key module assembly 340 under the control of the processor 320 . For example, the key module controller 330 may control the key module assembly 340 to activate keys appropriate to a situation in a physical key pad use condition.

The configuration of the electronic device shown in FIG. 3 is exemplary and embodiments of the present document are not limited thereto. For example, the electronic device may include only some of the components illustrated in FIG. 3 .

4A and 4B are diagrams illustrating electronic devices according to an exemplary embodiment.

According to an embodiment, the electronic device 400 may be physically changed according to whether or not a key input is required. For example, when a key input is required, a portion of the electronic device 400 may be changed to protrude. In this regard, the electronic device may include a flexible display 460 in which at least a portion can be extended, and a housing 420 accommodating the flexible display 460 .

The flexible display 460 may include a key active area IA and a key non-active area NIA. When a user's key input is not required, since the key active area IA and the key non-active area NIA do not protrude, the flexible display 460 may form a uniform surface as shown in FIG. 4A . When a user's key input is required, at least a partial area of the flexible display 460 may protrude outward (eg, in the z-axis direction) of the flexible display 460 . For example, since the key active area IA protrudes from the key non-active area NIA, the flexible display 460 may form a non-uniform surface as shown in FIG. 4B .

According to an embodiment, the flexible display 460 illustrated in FIG. 4B may include an extension region ST in which at least a partial region extends. When a user's key input is required, the extension area ST extends upward toward the outside (eg, in the Z-axis direction) of the flexible display 460 , and thus may be formed to protrude compared to the key non-active area NIA. have. The extended area ST may be restored to the same height as the key inactive area NIA when a user's key input is not required. According to various embodiments, the flexible display of the electronic device 400 may be extended through magnetic force generated by a plurality of magnetic materials.

5A and 5B are cross-sectional views illustrating a display assembly including a key module assembly according to an embodiment. 6A and 6B are cross-sectional views illustrating a key active area in which a key module assembly is disposed and a key non-active area according to an exemplary embodiment.

4A to 6B , the display assembly of the electronic device 400 may include a key module assembly 500 and a display 560 .

The key module assembly 500 may include an actuator including first and second magnetic bodies 510 and 520 , a fixing frame 530 , a support member 540 , and a lifting member 550 . The key module assembly may be disposed to overlap the key active area IA excluding the key non-active area NIA of the display 560 , or may be disposed to overlap the key active area IA and the key non-active area NIA.

The fixed frame 530 may be disposed between the support member 540 and the display 560 to limit the moving distance of the elevating member 550 to limit the separation distance of the display 560 from the support member 540 . The fixed frame 530 may include a body portion 534 and a movement stopper 532 .

The body portion 534 may be formed to provide an accommodation space in which the elevating member 550 is accommodated. Also, the body 534 may be disposed between adjacent first magnetic bodies 510 to shield a magnetic force generated between the first magnetic bodies 510 . Also, the body 534 may be disposed between adjacent second magnetic bodies 520 to shield a magnetic force generated between the second magnetic bodies 520 . The body 534 may be formed of a non-conductive material that is not easily magnetized by the first and second magnetic bodies 510 and 520 and does not affect the magnetism of the first and second magnetic bodies 510 and 520 . For example, the body 534 may be formed of a plastic material or a ceramic material.

The movement stopper 532 may protrude from the body 534 toward the lifting member 550 . The movement stopper 532 may limit the movement of the lifting member 550 while making contact with at least a portion of the lifting protrusion 552 when the lifting member 550 rises upward (eg, in the display 560 direction). .

The lifting member 550 may be disposed on the housing and/or the support member 540 to be retractable and withdrawable from one side of the housing (eg, the housing 420 of FIG. 4A ) and/or the support member 540 . The lifting member 550 may be formed of a non-conductive material that is not easily magnetized by the first and second magnetic bodies 510 and 520 and does not affect the magnetism of the first and second magnetic bodies 510 and 520 . For example, the lifting member 550 may be formed of a plastic material or a ceramic material.

The lifting member 550 may move up and down by a magnetic force generated between the first and second magnetic bodies 510 and 520 . When the elevating member 550 is raised, the extension area ST of the flexible display 560 may extend in the elevating direction of the elevating member 550 (or in a direction from the screen of the flexible display toward the user).

In this regard, the elevating member 550 may include an elevating frame 554 and an elevating protrusion 552 . The lifting frame 554 may be formed to provide an accommodation space in which the first magnetic body 510 is accommodated. In addition, the elevating frame 554 may be formed to surround both side surfaces of each of the plurality of first magnetic bodies 510 to shield magnetic force generated between adjacent first magnetic bodies 510 . The lifting protrusion 552 may be inserted into the guide groove 536 provided in the fixing frame 530 . When a magnetic force is generated between the first and second magnetic bodies 510 and 520, the lifting protrusion 552 may be guided and moved along the guide groove.

The support member 540 may be disposed to face the flexible display 560 with the fixing frame 530 interposed therebetween. The support member 540 may be positioned within a housing (eg, housing 420 in FIG. 4A ). Alternatively, the support member 540 may be at least a portion of the housing.

The first magnetic body 510 may be formed of any one of a permanent magnet and an electromagnet. According to an embodiment, the first magnetic body 510 may be disposed on the elevating member 550 . Alternatively, the first magnetic body 510 may be accommodated in the lifting member 550 .

The second magnetic body 520 may include the other one of a permanent magnet and an electromagnet. At least a portion of the second magnetic body 520 may be located in the support member 540 . In this regard, the support member 540 may include a groove or hole in which at least a portion of the second magnetic body 520 is located. For example, when the first magnetic body 510 is a permanent magnet, the second magnetic body 520 is formed of an electromagnet, and when the first magnetic body 510 is an electromagnet, the second magnetic body 520 is formed of a permanent magnet. can be According to an embodiment, the first and second magnetic bodies 510 and 520 may be permanent magnets.

Since the second magnetic body 520 is disposed to face the first magnetic body 510 , a magnetic force may be generated between the first and second magnetic bodies 510 and 520 . In this case, the area of the second magnetic body 520 may be the same as or different from the area of the first magnetic body 510 . For example, the area (or width) of the opposite surface of the second magnetic material 520 facing the first magnetic material may be larger than the area (or width) of the first magnetic material 510 facing the second magnetic material. . In this case, when a magnetic force is formed between the first and second magnetic bodies 510 and 520 , the force of the second magnetic body 520 pushing the first magnetic body 510 pushes the second magnetic body 520 out of the first magnetic body ( 510) may be formed to be greater than the force. Accordingly, the lifting member 550 can move up and down, so that the flexible display 560 can be easily deformed to protrude the keypad.

According to an embodiment, the first magnetic body 510 may be formed of a permanent magnet, and the second magnetic body 520 may be formed of an electromagnet. When a current flows through the second magnetic material 520 formed of an electromagnet, the second magnetic material 520 may become a magnet having at least one polarity. In addition, when no current flows through the second magnetic material 520 , the second magnetic material 520 may be demagnetized to have non-polarity.

For example, referring to FIGS. 5A and 6B , when no current flows through the second magnetic body 520 , which is an electromagnet, a magnetic force may not be formed between the first and second magnetic bodies 520 . Accordingly, since the first and second magnetic bodies 520 are maintained spaced apart by the first distance d1 , the flexible display 560 may maintain a flat surface without being deformed.

Referring to FIGS. 5B and 6B , when a current flows through the second magnetic body 520 , which is an electromagnet, a magnetic force may be formed between the first and second magnetic bodies 520 . For example, a repulsive force may be formed between the first and second magnetic bodies 510 and 520 . Since the lifting member 550 is raised by this repulsive force, the first and second magnetic bodies 510 and 520 may be spaced apart from each other by a second distance d2 that is greater than the first distance d1 . The extension area ST overlapping the first and second magnetic bodies 510 and 520 spaced apart by the second distance d2 may extend to protrude outward than the non-extended key non-active area NIA. This extended area ST may be formed as a key of a keypad. Accordingly, since the flexible display 560 is disposed in the key active area IA according to the key shape information stored in advance to activate the extended areas ST serving as a key, the user can press the key by applying force with his or her finger. .

As such, when the user needs to use the physical keypad, a magnetic force may be generated between the first and second magnetic materials 510 and 520 disposed in the key active area (eg, the key active area IA of FIG. 4B ). When the user does not need to use the physical keypad, magnetic force may not be generated between the first and second magnetic materials 510 and 520 disposed in the key active area (eg, the key active area IA of 4B). Also, magnetic force may not be generated between the first and second magnetic materials 510 and 520 disposed in the key non-active area NIA regardless of whether the user uses the physical keypad.

7A to 7C are diagrams illustrating an arrangement relationship of first and second magnetic materials of an electronic device according to an exemplary embodiment. 7A to 7C, A, S, D, F, ←, →, ↑, ↓, 1, ! written in a rectangle with thick borders are keys that are physically protruded from the key active area of the flexible display and displayed. , N and S written in a rectangle made of a thin border may indicate polarities of the first and second magnetic materials, respectively.

7A to 7C , the keypad 770 may be formed using the first and second magnetic materials 710 and 720 included in the electronic device. The keypad 770 may receive a user input for controlling the electronic device. The keypad 770 may be disposed in the key active area IA, which is at least a partial area of the display. Keypad 770 may include a number of keys. The plurality of keys may include, for example, at least one number key 774 , at least one character key 772 , and at least one or more function keys 776 and 778 . At least one function key includes a backspace key, a case conversion key, a symbol number conversion key, a Korean-English conversion key, a setting key, a space key, at least one or more punctuation key keys (776), an enter key and an arrow key (778), etc. can do. Each of the keys 772 , 774 , 776 , and 778 included in the keypad 770 may be disposed to correspond to at least one second magnetic body 720 . For example, the direction key may correspond to at least one second magnetic body 720 , and the letter key 772 and the number key 774 may correspond to at least two second magnetic bodies. In addition, the plurality of keys 772 , 774 , 776 , and 778 on the keypad 770 may physically protrude according to key shape information stored in the processor. The key shape information can be customized to the user's desired shape as well as various shapes such as a predetermined QWERTY method or 3*4 arrangement such as a keyboard, so it can be applied to various input devices that require key input such as a gamepad. can Meanwhile, the processor 320 of the electronic device may control the shape of the keyboard. For example, the processor 320 may arrange the keypad in a QWERTY method or a 3*4 method according to key shape information suitable for a situation.

Each of the keys 772 , 774 , 776 , and 778 included in the key pad 770 may physically protrude by a magnetic force formed between the first and second magnetic bodies 710 and 20 .

According to various embodiments, when the user presses the physically protruding keys 772,774,776,778 with a finger, the keys 772,774,776,778 can move up and down, so the user can feel the same pressure and tactile sensation as a physical keyboard. . In addition, since the noise level of the fricatives of the keys 772 , 774 , 776 and 778 is significantly lower than that of the physical keyboard, it cannot be recognized as noise.

According to various embodiments, when the user touches the physically protruding keys 772 , 774 , 776 , and 778 , the keys 772 , 774 , 776 , and 778 may not move up and down. Even if the keys 772 , 774 , 776 , and 778 do not move vertically, content corresponding to the user's touch input may be displayed on the display. At this time, the user can feel the touch like a physical keyboard because the keys 772 , 774 , 776 , and 778 are physically protruded.

According to an embodiment, in order to form a physical key, the first magnetic body 710 may be formed of at least one permanent magnet PM, and the second magnetic body 720 may be formed of a plurality of electromagnets EM. have.

According to an embodiment, the plurality of permanent magnets PM included in the first magnetic body 710 are all arranged to have the same polarity as shown in FIG. 7A , or one corresponding to the area of the first magnetic body 710 . of a permanent magnet (PM). Among the plurality of electromagnets EM included in the second magnetic material 720 , the electromagnet EM disposed in an area corresponding to the keypad 770 may be formed to allow current to flow. For example, the plurality of permanent magnets PM included in the first magnetic body 710 are disposed to have an S pole (or an N pole) polarity. Among the plurality of electromagnets EM included in the second magnetic material 720 , current may flow in the electromagnet EM corresponding to the keypad 770 , and current does not flow in the electromagnet EM not corresponding to the keypad 770 . may not be Accordingly, the electromagnet EM disposed in the area corresponding to the keypad 770 may have the same polarity as the permanent magnet PM facing the electromagnet EM, the S pole (or N pole) polarity do.

According to another embodiment, the plurality of permanent magnets PM included in the first magnetic body 710 may be arranged to have different polarities for each horizontal line or vertical line as shown in FIG. 7B . Among the plurality of electromagnets EM included in the second magnetic material 720 , the electromagnet EM disposed in an area corresponding to the keypad 770 may be formed to allow current to flow. For example, the plurality of permanent magnets PM having an S pole polarity included in the first magnetic body 710 is disposed on an odd-numbered horizontal line, and has an N pole polarity included in the first magnetic body 710 . The plurality of permanent magnets PM may be arranged on an even-numbered horizontal line. Among the plurality of electromagnets EM included in the second magnetic material 720 , current may flow in the electromagnet EM corresponding to the keypad 770 , and current does not flow in the electromagnet EM not corresponding to the keypad 770 . it may not be Accordingly, the electromagnet EM disposed in the area corresponding to the keypad 770 may be disposed to have the same polarity as the permanent magnet PM facing the electromagnet EM.

According to another embodiment, the plurality of permanent magnets PM included in the first magnetic body 710 may be arranged to have different polarities from the permanent magnets adjacent to each other in vertical and horizontal directions as shown in FIG. 7C . Among the plurality of electromagnets EM included in the second magnetic material 720 , the electromagnet EM disposed in an area corresponding to the keypad 770 may be formed to allow current to flow. For example, the plurality of permanent magnets PM having an N-pole polarity included in the first magnetic material 710 includes an intersection of an odd-numbered horizontal line and an odd-numbered vertical line, and an even-numbered horizontal line and an even-numbered vertical line. It can be placed at the intersection. A plurality of permanent magnets PM having an S pole polarity included in the first magnetic material 710 are disposed at the intersection of the even-numbered horizontal line and the odd-numbered vertical line, and the odd-numbered horizontal line and the even-numbered vertical line. can A current may flow in the electromagnet EM corresponding to the keypad 770 among the plurality of electromagnets EM included in the second magnetic body 720 , and no current flows in the electromagnet EM not corresponding to the keypad 770 . it may not be Accordingly, the electromagnet EM disposed in the area corresponding to the keypad 770 may be disposed to have the same polarity as the facing permanent magnet PM.

As such, among the plurality of electromagnets EM included in the second magnetic body 720 shown in FIGS. 7A to 7C , an electromagnet EM in which no current flows and a permanent magnet PM facing the electromagnet EM. There may be no magnetic force between them. Accordingly, by maintaining a predetermined distance between the first and second magnetic materials 510 and 520 , the flexible display 560 may not protrude and maintain flatness. For example, in the flexible display 560 , the area of the keypads 770 corresponding to the extended area may not protrude and maintain flatness.

In addition, between the electromagnet EM through which a current flows among the plurality of electromagnets EM included in the second magnetic material 720 shown in FIGS. 7A to 7C and the permanent magnet PM facing the electromagnet EM. A magnetic force (eg, a repulsive force) may be generated. Accordingly, since the separation distance between the first and second magnetic bodies 710 and 720 is increased, a portion of the flexible display 560 corresponding to the first and second magnetic bodies 710 and 720 in which the repulsive force is generated is formed in the first and second regions. It may protrude more than when no magnetic force is generated between the magnetic materials 710 and 720 . For example, in the flexible display 560, the area of the keypads 770 corresponding to the extended area protrudes, the area between the keys 772, 774, 776, and 778, and the non-key area NIA do not protrude and maintain flatness.

According to various embodiments, in order to selectively supply current to each of the plurality of electromagnets included in the second magnetic body, a key module control unit may be included.

8A is a block diagram schematically showing a key module assembly and a key module control unit included in an electronic device according to an embodiment, FIG. 8B is a view showing the key module assembly shown in FIG. 8A in detail, and FIG. 9 is FIG. 8 It is a circuit diagram showing one magnetic cell disposed in the key module assembly shown in FIG.

The electronic device 800 illustrated in FIGS. 8A to 9 may include a key module assembly 840 and a key module controller 880 .

The key module control unit 880 includes first and second driving units 810 and 820 for driving the key module assembly 840 .

The first magnetic driver 810 selects the plurality of first magnetic control lines XL1 to XLn in response to the control signal of the processor 320 . When a user's key input is required, the first magnetic driver 810 supplies a first magnetic control signal to the first magnetic control lines XL1 to XLn. When the user's key input is unnecessary, the first magnetic driver 810 does not supply the first magnetic control signal to the first magnetic control lines XL1 to XLn.

The second magnetic driver 820 selects the plurality of second magnetic control lines YL1 to YLn in response to the control signal of the processor 320 . When a user's key input is required, the second magnetic driver 820 supplies a second magnetic control signal to the second magnetic control lines YL1 to YLn. When the user's key input is unnecessary, the second magnetic driver 820 does not supply the second magnetic control signal to the second magnetic control lines YL1 to YLn.

According to an embodiment, each of the first and second magnetic drivers 810 and 820 may be formed of a demultiplexer. The total number of each of the first and second magnetic control lines XL and YL driven by each of the first and second magnetic drivers 810 and 820 may be reduced. For example, M (here, M=A×B, and M, A, and B each being a natural number) magnetic cells MC include A first magnetic control lines XL and B second magnetic It may be driven by the control line YL. The M magnetic cells MC may be driven by A+B magnetic control lines XL and YL instead of A×B magnetic control lines XL and YL. Accordingly, in an embodiment, a smaller number of magnetic control lines XL and YL than the total number of magnetic cells MC may be required.

The key module assembly 840 includes a plurality of first magnetic control lines XL1 to XLn disposed on a support member (eg, the support member 540 of FIG. 5A ), and a plurality of second magnetic control lines YL1 . to YLn), a first magnetic material 910 and a plurality of magnetic cells MC. The plurality of first magnetic control lines XL1 to XLn may extend in a first direction on the support member. The plurality of second magnetic control lines YL1 to YLn may extend in a second direction crossing the first direction on the support member. Each of the plurality of magnetic cells MC may be disposed at an intersection region of the first magnetic control line XL and the second magnetic control line YL. The second magnetic material 920 included in each of the plurality of magnetic cells MC may overlap the first magnetic material 910 having an N pole or an S pole.

Each of the plurality of magnetic cells MC may include a second magnetic material 920 and a cell driving circuit 900 electrically connected to the second magnetic material 920 as shown in FIG. 9 .

The cell driving circuit 900 may include a plurality of transistors. Transistors (or TFTs) included in the cell driving circuit may be implemented in a P-type or N-type MOSFET (Metal Oxide Semiconductor Field Effect Transistor) structure, or a hybrid type in which P-type and N-type are mixed.

The transistor may be a three-terminal device including a gate terminal, a source terminal, and a drain terminal. Since the source terminal serves to supply carriers to the transistor, in the transistor, carriers can begin to flow from the source terminal. Since the drain terminal is a terminal through which carriers exit the transistor, the flow of carriers in the MOSFET can flow from the source terminal to the drain terminal.

In the case of a P-type MOSFET (PMOS), since a carrier is a hole, the source voltage may be higher than the drain voltage so that holes can flow from the source terminal to the drain terminal. In a P-type MOSFET, since holes flow from the source terminal to the drain terminal, current can flow from the source terminal to the drain terminal.

In the case of an N-type MOSFET (NMOS), since carriers are electrons, the source voltage may have a voltage lower than the drain voltage so that electrons can flow from the source terminal to the drain terminal. In an N-type MOSFET, since electrons flow from the source terminal to the drain terminal, the direction of current can flow from the drain terminal to the source terminal.

The source terminal and drain terminal of the MOSFET may not be fixed. For example, the source terminal and drain terminal of the MOSFET may be changed according to the applied voltage. Hereinafter, since the invention should not be limited due to the source terminal and the drain terminal of the transistor, the source terminal and the drain terminal will be referred to as first and second terminals without distinction.

In an embodiment, the cell driving circuit 900 may include first and second transistors T11 and T12 and a capacitor Cst.

The first transistor T11 has a gate terminal electrically connected to the second magnetic control line YL, a first terminal electrically connected to the first magnetic control line XL, and a second transistor T12 electrically. It may include a second terminal connected to. The first transistor T11 transmits the first magnetic control signal of the first magnetic control line XL in response to the second magnetic control signal supplied from the second magnetic control line YL to the capacitor Cst and the second transistor (Cst). It can be supplied to the gate electrode of T12).

The second transistor T12 is electrically connected to a gate terminal electrically connected to the first transistor T11 , a first terminal electrically connected to the first magnetic voltage EVs1 supply line, and a second magnetic material 920 . It may include a second terminal that becomes The second transistor T12 controls the current supplied from the first magnetic voltage EVs1 supply line to the second magnetic material 920 in response to the first magnetic control signal supplied to the gate terminal of the second transistor T12. By doing so, the magnetic properties of the second magnetic body 920 may be controlled. And, even when the first transistor T11 is turned off, the second transistor T12 by the voltage charged in the capacitor Cst supplies a constant current to the second magnetic material 920 until the next first magnetic control signal is supplied. By supplying, the second magnetic body 920 can maintain its magnetic properties.

The capacitor Cst may be connected to the gate terminal of the second transistor T12 and the base voltage source to constantly maintain the first magnetic control signal applied to the gate terminal of the second transistor T12 .

The second magnetic material 920 may include one end connected to the second terminal of the second transistor T12 and the other end connected to the second magnetic voltage EVs2 supply line. The second magnetic material 920 may exhibit magnet properties when a driving current is output from the second transistor T12 , and may not exhibit magnet properties when a driving current is not output. The second magnetic material 920 according to an embodiment may be an electromagnet including a coil, and the polarity of the second magnetic material 920 may be determined according to a direction in which the coil is wound. For example, when the adjacent second magnetic bodies 920 have different polarities, coils included in the adjacent second magnetic bodies 920 may be wound in opposite directions. Accordingly, an attractive force or a repulsive force may be generated between the first and second magnetic bodies 910 and 920 according to the direction in which the coils of the second magnetic bodies 920 are wound and the polarity of the first magnetic body 910 .

According to an embodiment, the positive first magnetic voltage EVs1 is supplied to the first magnetic voltage EVs1 supply line, and the negative second magnetic voltage EVs2 is supplied to the second magnetic voltage EVs2 supply line. can be supplied. In this case, since current flows in the first direction in the second magnetic material 920 in which the coil is wound in the first direction, the second magnetic material 920 may exhibit an S-pole property.

According to another embodiment, the first magnetic voltage EVs1 of negative polarity is supplied to the first magnetic voltage EVs1 supply line, and the second magnetic voltage EVs2 of positive polarity is supplied to the second magnetic voltage EVs2 supply line. can be supplied. In this case, since a current flows in the second direction in the second magnetic material 920 in which the coil is wound in a second direction different from the first direction, the second magnetic material 920 may exhibit an N-pole property.

The operation of each of the magnetic cells MC including the second magnetic material 920 and the cell driving circuit 900 is specifically described as shown in Table 1 below.

	VXn	VYn	Vg	second magnetic body
action 1	H	H	H	Active (N-pole or S-pole)
action 2	L	H	L	inactive
action 3	H	L	VX(n-1)	maintain
action 4	L	L	VX(n-1)	maintain

When the second magnetic control voltage VYn in a high (H) state is applied to the gate terminal of the first transistor T11 , the first transistor T11 is turned on. The first magnetic control voltage VXn in the low (L) state is applied to the gate terminal Vg of the second transistor T12 through the turned-on first transistor T1 . The second transistor T12 is turned off by the first magnetic control voltage VXn in the low (L) state. Due to the turned-off second transistor T12 , a driving current does not flow between the first and second terminals of the second transistor T12 . Accordingly, the second magnetic body 920 is deactivated and thus cannot have the properties of a magnet. When the second magnetic control voltage VYn in a high (H) state is applied to the gate terminal of the first transistor T11 , the first transistor T11 is turned on. The first magnetic control voltage VXn in a high (H) state is applied to the gate terminal Vg of the second transistor T12 through the turned-on first transistor T11 . The second transistor T12 may be turned on by the first magnetic control voltage VXn in a high state. A first magnetic voltage EVs1 higher or lower than the second magnetic voltage EVs2 may be applied to one end of the second magnetic material 920 through the turned-on second transistor T12 . Accordingly, since a current may flow from one end to the other end in the second magnetic material 920 or a current may flow from the other end to one end, the second magnetic material 920 is activated to have an N-pole or an S-pole property. have. For example, in the second magnetic material 920 having an N-pole property, a portion facing the support member may be an N-pole, and a portion facing the first magnetic material may be an S-pole. In this case, if the first magnetic material has an N-pole property, a repulsive force is generated between the first magnetic material and the second magnetic material 920 , so that the flexible display overlapping the first magnetic material and the second magnetic material 920 is the flexible display. It may protrude to the outside of the display.

Meanwhile, when the second magnetic control voltage VYn in the low (L) state is applied to the gate terminal of the first transistor T11 , the first transistor T11 is turned off. At this time, the first magnetism of the previous state charged in the capacitor Cst until the first magnetic control signal VX(n+1) of the next state is supplied to the gate terminal Vg of the second transistor T12 Since the control voltage VX(n-1) is applied, the second magnetic material 920 may maintain its previous state.

According to an embodiment, after the second magnetic material 920 is activated or deactivated (operation 1 or operation 2), the second magnetic material 920 floats through the cell driving circuit 900 , so that the second magnetic material 920 . may remain active and/or inactive (operation 3 or operation 4).

According to an embodiment, after an operation signal corresponding to any one of the four operations shown in Table 1 is applied to the cell driving circuit 900 , the second magnetic material 920 may be set to an inactive state. Accordingly, the magnetic cell MC including the second magnetic material 920 and the cell driving circuit 900 may be initialized.

10 is a diagram illustrating a key input period and an initialization period included in one frame period in an electronic device according to an exemplary embodiment.

6B and 10 , in the electronic device according to an exemplary embodiment, during the key input period KIP, the touch of the extension region ST protrudes by the magnetic force between the first and second magnetic bodies 510 and 520 and serves as a keypad. An input may be sensed, and the second magnetic material 520 may be deactivated during the initialization period IP. The key input period KIP and the initialization period IP may be time-division driven, and the key input period KIP and the initialization period IP may be alternately arranged and separated from each other.

During the key input period KIP, since the second magnetic body 520 corresponding to each key included in the keypad is activated, the extension protrudes by the magnetic force between the first and second magnetic bodies 510 and 520 corresponding to each key. A touch input may be performed through the area ST.

During the initialization period IP, since the second magnetic body 520 corresponding to each key included in the keypad is deactivated, the first magnetic body 510 and the second magnetic body 520 and the support member to maintain the initial separation distance. It can be descended towards 540 . Accordingly, in the initialization period IP, each of the extended regions ST protruding during the key input period KIP is restored, so that the surface of the flexible display 560 may be flat. After the initialization period, the electronic device may display an image on the flexible display 560 having a flat surface during the display period DP.

According to various embodiments of the present disclosure, the extended areas ST serving as the keypad may not be restored during the initialization period IP. Accordingly, the content displayed on the display 560 may be changed in a state in which the extended regions ST serving as the keypad protrude during the display period DP.

11 is a diagram illustrating an electronic device having a flexible display extended during a key input period according to an embodiment of the present invention.

Referring to FIG. 11 , the flexible display 1160 included in the electronic device 1100 may include a key active area IA. First and second extension areas ST1 and ST2 extending at least a portion of the key active area IA may be disposed.

When a user's key input using a physical keypad is required, the first extension area ST1 extends upward toward the outside (eg, in the Z-axis direction) of the flexible display 1160 , so it is located in the key non-active area NIA. It may be formed to protrude in comparison. When a user's key input is unnecessary, the first extension area ST1 may be restored to the same height as the key inactive area NIA.

When a user's key input using a physical keypad is required, the second extension area ST2 extends downward toward the housing 1120 (eg, in a direction opposite to the Z-axis), and thus is depressed compared to the key inactive area NIA. It can be formed to be When a user's key input is unnecessary, the second extension area ST2 may be restored to the same height as the key inactive area NIA.

According to various embodiments, the flexible display of the electronic device may be extended through attractive and repulsive forces generated by a plurality of magnetic materials.

12A is a cross-sectional view illustrating a display assembly according to an exemplary embodiment. 12B and 12C are diagrams illustrating an arrangement relationship of first and second magnetic materials of an electronic device according to an exemplary embodiment. 12B and 12C, A, S, D, F, ←, →, ↑, ↓, 1, ! written in a rectangle with thick borders are keys that are physically protruded from the key active area of the flexible display and displayed. , N and S written in a rectangle made of a thin border may indicate polarities of the first and second magnetic materials, respectively.

11 and 12A , the display assembly of the electronic device 1100 may include a key module assembly 1200 and a display 1260 .

The key module assembly 1200 may include an actuator including first and second magnetic bodies 1210 and 1220 , a fixing frame 1230 , a support member 1240 , and a lifting member 1250 .

The fixed frame 1230 may be disposed between the support member 1240 and the display 1260 to limit the moving distance of the elevating member 1250 to limit the separation distance of the display 1260 from the support member 1240 . The fixing frame 1230 may be disposed between adjacent first magnetic bodies 1210 to shield a magnetic force generated between the first magnetic bodies 1210 . In addition, the fixing frame 1230 may be disposed between adjacent second magnetic bodies 1220 to shield a magnetic force generated between the second magnetic bodies 1220 .

The lifting member 1250 may move up and down by a magnetic force generated between the first and second magnetic bodies 1210 and 1220 . When the elevating member 1250 is raised, the first extension area ST of the flexible display 1260 moves in one direction along the elevating direction of the elevating member 1250 (or the direction from the screen of the flexible display 1260 toward the user). can be extended When the elevating member 1250 is lowered, the second extension area ST2 of the flexible display 1260 moves in the lowering direction of the elevating member 1250 (or the direction in which the user faces the front of the screen of the flexible display 1260 ). Accordingly, it may extend in a direction opposite to that of the first extension region ST1.

According to an embodiment, the lifting member 1250 may be formed to surround both side surfaces of each of the plurality of first magnetic bodies 1210 to shield magnetic force generated between adjacent first magnetic bodies 1210 .

The support member 1240 may be formed to accommodate the second magnetic body 1220 . The support member 1240 may be disposed to face the flexible display 1260 with the fixed frame 1230 interposed therebetween.

The first magnetic body 1210 may be any one of a permanent magnet and an electromagnet, and may be disposed on the elevating member 1250 or accommodated in the elevating member 1250 . The second magnetic body 1220 is the other one of a permanent magnet and an electromagnet, and may be accommodated in the support member 1240 .

According to an embodiment, the first magnetic body 1210 may be formed of a permanent magnet PM as shown in FIGS. 12B and 12C , and the second magnetic body 1220 may be formed of an electromagnet EM.

When a current flows through the second magnetic material 1220 formed of an electromagnet, the second magnetic material 1220 may become a magnet having at least one polarity. In addition, when no current flows through the second magnetic material 1220 , the second magnetic material 1220 may be demagnetized to have non-polarity.

Specifically, when no current flows in the second magnetic body 1220 , a magnetic force may not be formed between the first and second magnetic bodies 1220 . Since the first and second magnetic materials 1220 are spaced apart from each other by the first distance d1 , the flexible display 1260 may maintain a flat surface without being deformed. For example, since a magnetic force is not formed between the first and second magnetic materials 1220 disposed in the key non-active area NIA, the flexible display 1260 corresponding to the key non-active area NIA is not deformed and has a flat surface. can keep

When a current flows through the second magnetic body 1220 in one direction, a repulsive force may be formed between the first and second magnetic bodies 1220 . Since the lifting member 550 is raised by this repulsive force, the first and second magnetic bodies 1210 and 1220 may be spaced apart from each other by a second distance d2 that is greater than the first distance d1 . Accordingly, a portion of the flexible display 1260 overlapping with the first and second magnetic materials 1210 and 1220 forming a repulsive force is deformed, so that a portion of the flexible display 1260 may protrude outward than the remaining areas. . For example, since a repulsive force is formed between the first extension region ST1 disposed in the key active region and the first and second magnetic materials 1210 and 1220 corresponding to the first extension region ST1 , the first extension region ST1 is formed in the flexible display 1260 . ) may be deformed to the outside and protrude from the key non-active area NIA.

When a current flows in the second magnetic body 1220 in one direction and in the other direction, an attractive force may be formed between the first and second magnetic bodies 1220 . Since the lifting member 1250 is lowered by this attractive force, the first and second magnetic bodies 1210 and 1220 may be in contact with each other without being spaced apart. Accordingly, a portion of the flexible display 1260 overlapping the first and second magnetic materials 1210 and 1220 forming an attractive force is deformed, so that a portion of the flexible display 1260 may be depressed inward than the remaining areas. . For example, since an attractive force is formed between the second extension region ST2 disposed in the key active region and the first and second magnetic materials 1210 and 1220 corresponding to the second extension region ST2, the second extension region ST2 is the flexible display 1260 . ) may be deformed to the inside and be depressed than the key non-active area NIA.

The key pad 1270 shown in FIGS. 12B and 12C may be formed using the first and second magnetic materials 1210 and 1220 as described above. The keypad 1270 may be disposed in a key active area (eg, the key active area IA of FIG. 11 ) that is at least a partial area of the flexible display. Keypad 1270 may include a number of keys. The plurality of keys may include, for example, at least one number key 1274 , at least one text key 1272 , and at least one or more function keys 1276 and 1278 .

Since each of the keys 1272 , 1274 , 1276 , and 1278 included in the key pad 1270 corresponds to the first extension region ST1 , a repulsive force formed between the first and second magnetic bodies 1210 and 1220 causes physical can be protruded into For example, the key pad 1270 may physically protrude according to key shape information stored in the processor. Since key shape information can be customized not only in a predetermined shape such as a keyboard, but also in a shape desired by a user, it may be applicable to various input devices requiring key input, such as a game pad.

When the user presses the physically protruding keys 1272, 1274, 1276, and 1278 with a finger, the keys 1272, 1274, 1276, and 1278 can move up and down, so the user can use the same pressure as a physical keyboard. and tactile sensation. Also, since the noise level of the fricatives of the keys 1272, 1274, 1276, and 1278 is lower than that of the physical keyboard, it cannot be recognized as noise.

On the other hand, since the area between the keys 1272, 1274, 1276, and 1278 corresponds to the second extended area ST2, it may be physically depressed by the attractive force formed between the first and second magnetic bodies 1210 and 1220. have. Accordingly, since each of the keys 1272 , 1274 , 1276 , and 1278 is spaced apart from the adjacent keys by the recessed second extension region ST2 to maintain independence, an unintentional touch error by the user's finger is prevented from occurring. can be prevented

According to an embodiment, the plurality of permanent magnets PM included in the first magnetic body 1210 are arranged to have the same polarity as shown in FIG. 12B , or to have different polarities for each horizontal line or vertical line. Alternatively, as shown in FIG. 12C , it may be arranged to have a polarity different from that of the adjacent permanent magnets PM in the vertical and horizontal directions.

Among the plurality of electromagnets EM included in the second magnetic material 1220 , the electromagnet EM corresponding to the keypad 1270 may form a repulsive force with the permanent magnet PM. In addition, among the plurality of electromagnets EM included in the second magnetic body 1220 , an electromagnet EM corresponding to an area between the keypads 1270 may form an attractive force with the permanent magnet PM. Accordingly, the electromagnet EM corresponding to the keypad 1270 has the same polarity as the facing permanent magnet PM, and the electromagnet EM corresponding to the area between the keypads is different from the facing permanent magnet PM. It can have polarity.

13 is a circuit diagram illustrating a magnetic cell included in an electronic device according to an exemplary embodiment.

Referring to FIG. 13 , each of the plurality of magnetic cells MC included in the electronic device may include a second magnetic material 1320 and a cell driving circuit 1300 electrically connected to the second magnetic material 1320 . have.

The cell driving circuit 1300 may include a plurality of transistors. In an embodiment, the cell driving circuit 1300 may include first to sixth transistors T21, T22, T23, T24, T25, and T26, and first and second capacitors Cst1 and Cst2. The cell driving circuit 1300 may be a complementary circuit that may reverse the polarity of the second magnetic material 1320 . In this regard, the second and third transistors T22 and T23 may be formed of FETs having channels having different polarities from those of the fifth and sixth transistors T25 and T26. The second and third transistors T22 and T23 may be formed of any one of an N-type MOSFET and a P-type MOSFET, and the fifth and sixth transistors T25 and T26 may be formed of the other of an N-type MOSFET and a P-type MOSFET. have. For example, the second and third transistors T22 and T23 may be formed of N-type MOSFETs, and the fifth and sixth transistors T25 and T26 may be formed of P-type MOSFETs.

The first transistor T21 has a gate terminal electrically connected to the second magnetic control line YL, a first terminal electrically connected to the first magnetic control line XL, and second and third transistors T22 , T23) may include a second terminal electrically connected to each. The first transistor T21 transmits the first magnetic control signal of the first magnetic control line XL to the first capacitor Cst1 in response to the second magnetic control signal supplied from the second magnetic control line YL; It may be supplied to the gate electrodes of the second and third transistors T22 and T23.

The second transistor T22 is electrically connected to a gate terminal electrically connected to the first transistor T21 , a first terminal electrically connected to the first magnetic voltage EVs1 supply line, and a second magnetic material 1320 . It may include a second terminal that becomes The second transistor T22 controls the current supplied from the first magnetic voltage EVs1 supply line to the second magnetic material 1320 in response to the first magnetic control signal supplied to the gate terminal of the second transistor T22. By doing so, the magnetic properties of the second magnetic body 1320 may be controlled.

The third transistor T23 is electrically connected to a gate terminal electrically connected to the first transistor T21 , a first terminal electrically connected to the second magnetic voltage EVs2 supply line, and a second magnetic body 1320 . It may include a second terminal that becomes The third transistor T23 controls the current supplied from the second magnetic voltage EVs2 supply line to the second magnetic material 1320 in response to the first magnetic control signal supplied to the gate terminal of the third transistor T23. By doing so, the magnetic properties of the second magnetic body 1320 may be controlled.

Meanwhile, even when the first transistor T21 is turned off, the second and third transistors T22 and T23 by the voltage charged in the first capacitor Cst1 remain connected to the second magnetic material until the next first magnetic control signal is supplied. By supplying a constant current to the 1320 , the second magnetic material 1320 may maintain its magnetic properties.

The first capacitor Cst1 is connected to the gate terminal and the ground voltage source of each of the second and third transistors T22 and T23, and is applied to the gate terminal of each of the second and third transistors T22 and T23. It is possible to keep the control signal constant.

The fourth transistor T24 includes a gate terminal electrically connected to the second magnetic control line YL, a first terminal electrically connected to the first magnetic control line XL, and fifth and sixth transistors T25 . , T26) may include a second terminal electrically connected to each. The fourth transistor T24 transmits the first magnetic control signal of the first magnetic control line XL to the second capacitor Cst2 in response to the second magnetic control signal supplied from the second magnetic control line YL. It may be supplied to the gate electrodes of the fifth and sixth transistors T25 and T26.

The fifth transistor T25 is electrically connected to a gate terminal electrically connected to the fourth transistor T24 , a first terminal electrically connected to the second magnetic voltage EVs2 supply line, and a second magnetic material 1320 . It may include a second terminal that becomes The fifth transistor T25 controls the current supplied from the second magnetic voltage EVs2 supply line to the second magnetic material 1320 in response to the first magnetic control signal supplied to the gate terminal of the fifth transistor T25 . By doing so, the magnetic properties of the second magnetic body 1320 may be controlled.

The sixth transistor T26 has a gate terminal electrically connected to the fourth transistor T24 , a first terminal electrically connected to the first magnetic voltage EVs1 supply line, and a second magnetic material 1320 . It may include a second terminal that becomes The sixth transistor T26 controls the current supplied from the first magnetic voltage EVs1 supply line to the second magnetic material 1320 in response to the first magnetic control signal supplied to the gate terminal of the second transistor T26. By doing so, the magnetic properties of the second magnetic body 1320 may be controlled.

Meanwhile, even when the fourth transistor T24 is turned off, the fifth and sixth transistors T25 and T26 by the voltage charged in the second capacitor Cst2 remain connected to the second magnetic material until the next first magnetic control signal is supplied. By supplying a constant current to the 1320 , the second magnetic material 1320 may maintain its magnetic properties.

The second capacitor Cst2 is connected to the gate terminal and the ground voltage source of each of the fifth and sixth transistors T25 and T26, and the first magnetic field applied to the gate terminal of each of the fifth and sixth transistors T25 and T26. It is possible to keep the control signal constant.

The second magnetic material 1320 may include one end connected to each of the second and fifth transistors T22 and T25 and the other end connected to each of the third and sixth transistors T23 and T26. The second magnetic material 1320 may exhibit magnet properties when a driving current is output from each of the second and sixth transistors T22 and T26 , and may not exhibit magnet properties when the driving current is not output. The second magnetic body 1320 according to an embodiment may be an electromagnet including a coil, and the polarity of the second magnetic body 1320 may be determined according to a direction in which the coil is wound. For example, when the adjacent second magnetic bodies 1320 have different polarities, coils included in the adjacent second magnetic bodies 1320 may be wound in opposite directions. Accordingly, according to the direction in which the coil of the second magnetic bodies 1320 is wound and the polarity of the first magnetic body (eg, the first magnetic body 1210 of FIG. 12A ), there is an attractive force between the first and second magnetic bodies 1210 and 1320 . Or a repulsive force may be generated.

According to an embodiment, the positive first magnetic voltage EVs1 is supplied to one end of the second magnetic material 1320 through the second transistor T22 and to the other end of the second magnetic material through the third transistor T23. A second magnetic voltage EVs2 having a negative polarity may be supplied. In this case, since a current flows in the first direction in the second magnetic material 1320 , the second magnetic material 1320 may exhibit an S-pole property.

According to another embodiment, the positive first magnetic voltage EVs1 is supplied to the other end of the second magnetic material 1320 through the sixth transistor T26, and is applied to one end of the second magnetic material through the fifth transistor T25. A second magnetic voltage EVs2 having a negative polarity may be supplied. In this case, since a current flows in a second direction different from the first direction in the second magnetic material 1320 , the second magnetic material 1320 may exhibit an N-pole property.

Specifically, the operation of each of the magnetic cells MC including the second magnetic material 1320 and the cell driving circuit 1300 may be shown in Table 2 below. An operation of each of the magnetic cells MC will be described in detail with reference to FIGS. 14A and 14B .

	VXn	VYn	Vg1/Vg2	T22/T23	T25/T26	second magnetic body
action 1	H	H	H	On	Off	N pole (or S pole)
action 2	L	H	L	Off	On	S pole (or N pole)
action 3	H	L	VX(n-1)	maintain	maintain	maintain
action 4	L	L	VX(n-1)	maintain	maintain	maintain

Referring to FIG. 14A , when the second magnetic control voltage VYn in a high (H) state is applied to the gate terminal of the fourth transistor T24 , the fourth transistor T24 is turned on. The first magnetic control voltage VXn in a high state is applied to the gate terminals of the fifth and sixth transistors T25 and T26 through the turned-on fourth transistor T24 . The fifth and sixth transistors T25 and T26 are turned off by the first magnetic control voltage VXn in the high state. Then, the second magnetic in the high state is connected to the gate terminal of the first transistor T21. When the control voltage VYn is applied, the first transistor T21 is turned on. The first magnetic control voltage VXn in a high (H) state is applied to the gate terminal Vg of each of the second and third transistors T22 and T23 through the turned-on first transistor T21 . Each of the second and third transistors T22 and T23 may be turned on by the first magnetic control voltage VXn in the high state. The first magnetic driving voltage Vs1 is applied to one end of the second magnetic material 1320 through the turned-on second transistor T22, and to the other end of the second magnetic material 1320 through the turned-on third transistor T3. A second magnetic voltage EVs2 may be applied. Accordingly, since a current may flow in the direction from one end (or the other end) to the other end (or one end) in the second magnetic material 1320 , the second magnetic material 1320 has an S pole (or N pole) property. can

For example, the first magnetic driving voltage Vs1 may be a positive voltage, and the second magnetic driving voltage Vs2 may be a negative voltage lower than the first magnetic driving voltage Vs1 or a base voltage. In this case, since a current may flow from one end to the other end in the second magnetic material 1320 , the second magnetic material 1320 may have an S-pole property. In the second magnetic body 1320 having an S pole property, a portion facing the support member may be an N pole, and a portion facing the first magnetic body may be an S pole. In this case, if the first magnetic material has an S pole property, a repulsive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is a flexible display. may protrude to the outside of In addition, if the first magnetic material has an N-pole property, an attractive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is the same as that of the flexible display. It can be recessed inward.

As another example, the second magnetic driving voltage Vs2 may be a positive voltage, and the first magnetic driving voltage Vs1 may be a negative voltage lower than the second magnetic driving voltage Vs2 or a base voltage. In this case, since a current may flow from the other end to one end in the second magnetic material 1320 , the second magnetic material 1320 may have an N-pole property. In the second magnetic body 1320 having an N pole property, a portion facing the support member may be an S pole, and a portion facing the first magnetic body may be an N pole. In this case, if the first magnetic material has an N-pole property, a repulsive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is a flexible display. may protrude to the outside of In addition, if the first magnetic material has an S-pole property, an attractive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is the same as that of the flexible display. It can be recessed inward.

Referring to FIG. 14B , when the second magnetic control voltage VYn in a high (H) state is applied to the gate terminal of the first transistor T21 , the first transistor T21 is turned on. The first magnetic control voltage VXn in the low (L) state is applied to the gate terminals of the second and third transistors T22 and T23 through the turned-on first transistor T21 . The second and third transistors T22 and T23 are turned off by the first magnetic control voltage VXn in the low (L) state.

And, when the second magnetic control voltage VYn in a high (H) state is applied to the gate terminal of the fourth transistor T24 , the fourth transistor T24 is turned on. The first magnetic control voltage VXn in the low (L) state is applied to the gate terminal Vg of each of the fifth and sixth transistors T25 and T26 through the turned-on fourth transistor T24 . Each of the fifth and sixth transistors T25 and T26 may be turned on by the first magnetic control voltage VXn in the low (L) state. The second magnetic driving voltage Vs2 is applied to one end of the second magnetic material 1320 through the turned-on fifth transistor T25, and to the other end of the second magnetic material 1320 through the turned-on sixth transistor T26. A first magnetic driving voltage EVs1 may be applied. Accordingly, since a current may flow in the second magnetic material 1320 from the other end (or one end) to one end (or the other end) direction, the second magnetic material 1320 has an N-pole (or S-pole) property. can

For example, the first magnetic driving voltage Vs1 may be a positive voltage, and the second magnetic driving voltage Vs2 may be a negative voltage lower than the first magnetic driving voltage Vs1 or a base voltage. In this case, since a current may flow from the other end to one end in the second magnetic material 1320 , the second magnetic material 1320 may have an N-pole property. In the second magnetic body 1320 having an N pole property, a portion facing the support member may be an S pole, and a portion facing the first magnetic body may be an N pole. In this case, if the first magnetic material has an N-pole property, a repulsive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is a flexible display. may protrude to the outside of In addition, if the first magnetic material has an S-pole property, an attractive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is the same as that of the flexible display. It can be recessed inward.

As another example, the second magnetic driving voltage Vs2 may be a positive voltage, and the first magnetic driving voltage Vs1 may be a negative voltage lower than the second magnetic driving voltage Vs2 or a base voltage. In this case, since a current may flow from one end to the other end in the second magnetic material 1320 , the second magnetic material 1320 may have an S-pole property. In the second magnetic body 1320 having an S pole property, a portion facing the support member may be an N pole, and a portion facing the first magnetic body may be an S pole. In this case, if the first magnetic material has an S pole property, a repulsive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is a flexible display. may protrude to the outside of In addition, if the first magnetic material has an N-pole property, an attractive force is generated between the first magnetic material and the second magnetic material 1320 , so that the flexible display overlapping the first magnetic material and the second magnetic material 1320 is the same as that of the flexible display. It can be recessed inward.

Meanwhile, when the second magnetic control voltage VYn in the low (L) state is applied to the gate terminal of each of the first and fourth transistors T21 and T24, each of the first and fourth transistors T21 and T24 is turned on. turns off At this time, the first capacitor Cst1 is charged until the first magnetic control signal VX(n+1) of the next state is supplied to the gate terminals Vg1 of the second and third transistors T22 and T23. Since the first magnetic control voltage VX(n-1) of the previous state is applied, the second magnetic material 1320 can maintain the previous state. In addition, the second capacitor Cst2 is charged until the first magnetic control signal VX(n+1) in the next state is supplied to the gate terminals Vg2 of the fifth and sixth transistors T25 and T26. Since the first magnetic control voltage VX(n-1) of the previous state is applied, the second magnetic material 1320 may maintain the previous state.

According to an embodiment, after the second magnetic material 1320 is activated or deactivated (operation 1 or operation 2), the second magnetic material 1320 floats through the cell driving circuit 1300 , so that the second magnetic material 1320 . may remain active and/or inactive (operation 3 or operation 4).

According to an embodiment, after an operation signal corresponding to any one of the four operations shown in Table 2 is applied to the cell driving circuit 1300 , the second magnetic material 1320 may be set to an inactive state. Accordingly, the magnetic cell MC including the second magnetic material 1320 and the cell driving circuit 1300 may be initialized.

15 is a diagram illustrating an operation flowchart of an electronic device according to an exemplary embodiment.

Referring to FIG. 15 , in operation S1 , the processor 320 of the electronic device determines whether the scenario requires the use of a physical keypad. In a scenario in which the use of a physical keypad is not required, the processor deactivates the key module assembly through the key module controller. In a scenario in which the use of a physical keypad is required, the processor activates the key module assembly through the key module controller.

In operation S2, the processor of the electronic device may acquire physical keypad shape information suitable for a scenario in a physical keypad usage condition.

In operation S3, the key module controller of the electronic device may apply a control signal and a driving signal to the magnetic cell of the key corresponding to the physical keypad shape information. For example, a current may be applied to at least some of the plurality of electromagnets included in the magnetic cell.

In operation S4, a magnetic force may be generated between the first and second magnetic materials by the control signal and the driving signal applied to the magnetic cell. When a repulsive force is generated between the first and second magnetic bodies, the key may protrude to the outside of the display.

In operation S5, keys protruding to the outside of the display by the magnetic force generated between the first and second magnetic bodies may be implemented on the screen of the display.

In operation S6 , when there is a user's touch input through the keypad, the touch screen may transmit the corresponding touch coordinates to the processor, and the processor may analyze the touch coordinates received from the user.

In operation S7, an image corresponding to an operation corresponding to the analyzed touch coordinates may be displayed on the flexible display.

16A to 16E are views illustrating an electronic device including a key module assembly having first and second magnetic materials according to an exemplary embodiment.

In an embodiment, an electronic device implementing a physical keypad through a display capable of protruding and/or retracting by a magnetic force formed between the first and second magnetic bodies is a portable communication device (eg, a smartphone), a computer device, and a portable multimedia device. It may be applied to a device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

In an embodiment, the key module assembly including the first and second magnetic materials may be used in various form factors such as electronic devices and accessories of electronic devices, as shown in FIGS. 16A to 16E .

The electronic device 1610 illustrated in FIG. 16A may include a display including first and second display areas 1612 and 1614 . When the first display area 1612 forms a predetermined angle with the second display area 1614 , keys disposed in the key active area of at least one of the first and second display areas 1612 and 1614 may protrude. have.

The electronic device 1620 illustrated in FIG. 16B may include a stretchable display. The display may include a first display area 1622 and a second display area 1624 disposed to form an acute angle, a right angle, or an obtuse angle with the first display area 1622 . In the electronic device 1620 illustrated in FIG. 16B , when one of the first and second display areas 1622 and 1624 is stretched to form an acute angle, a right angle, or an obtuse angle with the other area, 1624 of the second display area ) keys disposed in the key active area may protrude.

The electronic device 1630 illustrated in FIG. 16C may include a display including first and second display areas 1632 and 1634 . When the electronic device is fully opened so that the first and second display areas 1632 and 1634 form 180 degrees, keys disposed in the key active area of the second display area 1634 may protrude by magnetic force.

The electronic device 1640 illustrated in FIG. 16D may include detachable first and second displays 1642 and 1644 . In FIG. 16D , the first display 1642 may be disposed under the second display 1644 before being separated from the second display 1644 .

At least one of the first and second displays 1642 and 1644 may have a stretchable function. When the first and second displays 1642 and 1644 are separated, keys disposed in the key active area of the display having a stretchable function among the first and second displays 1642 and 1644 may protrude by magnetic force. have.

The electronic device 1650 illustrated in FIG. 16E may include a first display 1652 and a detachable second display 1654 . The second display 1654 can slide over the first display 1652 . When the second display 1654 slides toward the lower end of the first display 1652 , an image may be displayed on the second display 1654 together with the first display 1652 . When the second display 1654 slides toward the top or bottom of the first display 1652 , keys disposed in the key active area of the second display 1654 may protrude by magnetic force.

The key active area according to the embodiment of this document is not limited to the area in which the aforementioned keys are disposed. According to various embodiments, the key active area is a touch input area, and may be variously used as an input means area other than a key, a physical button area, a tactile area, or an image area. For example, when the user touches the image area, at least a partial area of the display corresponding to the touch input may be enlarged and/or reduced to perform various available operations.

An electronic device according to an embodiment disclosed in this document includes: a housing; a flexible display disposed in the housing; an actuator disposed between the flexible display and the housing, the actuator including first and second magnetic materials generating at least one of a repulsive force and an attractive force so that at least a portion of the flexible display is extendable; and an elevating member disposed between the flexible display and the actuator and moving up and down by the magnetic force, wherein the flexible display moves in one direction along the lifting direction of the elevating member raised by any one of the repulsive force and the attractive force. It may include an extendable touch input area.

In various embodiments, the flexible display may include a plurality of first extension regions including the touch input region; a plurality of second extension regions disposed between the plurality of first extension regions and extending in a direction opposite to the first extension regions by the other one of the repulsive force and the attractive force; It may include a key non-active area disposed in areas other than the first and second extension areas.

In various embodiments, the first extension region may protrude from the key non-active region, and the second extension region may be recessed from the key non-active region.

In various embodiments, the electronic device may further include a support member in which the second magnetic body facing the first magnetic body is accommodated, and the first magnetic body may be disposed in the elevating member.

In various embodiments, the electronic device may further include a fixing frame disposed between the support member and the flexible display to provide an accommodation space for the first and second magnetic bodies and the lifting member.

In various embodiments, any one of the first and second magnetic materials may include at least one permanent magnet, and the other one of the first and second magnetic materials may include a plurality of electromagnets.

In various embodiments, a cell driving circuit electrically connected to each of the plurality of electromagnets and including a plurality of transistors may be included.

In various embodiments, the cell driving circuit includes first to sixth transistors, the first and fourth transistors are connected to first and second magnetic control lines, respectively, and the second transistor is the first transistor connected to, connected between one end of the electromagnet and a first magnetic voltage supply line, the third transistor connected to the first transistor, and connected between the other end of the electromagnet and a second magnetic voltage supply line, and A fifth transistor is connected to the fourth transistor, is connected between one end of the electromagnet and a second magnetic voltage supply line, the sixth transistor is connected to the fourth transistor, the other end of the electromagnet and the first magnetic voltage can be connected between the supply lines.

In various embodiments, the second and third transistors may have channels having different polarities from those of the fifth and sixth transistors.

In various embodiments, the first magnetic body corresponding to the second extension region may contact the second magnetic body by the attractive force in an activated state of the second magnetic body.

In various embodiments, the first magnetic material corresponding to the first extension area is spaced apart from the second magnetic material by a first distance in a state in which the second magnetic material is deactivated, and the first magnetic material corresponding to the first extension area The magnetic body may be spaced apart from the second magnetic body by a second distance greater than the first distance by the repulsive force when the second magnetic body is activated.

In various embodiments, the second magnetic material has a first polarity when current flows in a first direction, and the second magnetic material has a second polarity when current flows in a second direction opposite to the first direction can have

In various embodiments of the present disclosure, in the first extension region, the first magnetic body is spaced apart from the second magnetic body by a first distance and restored to the same height as the key deactivation region when the second magnetic body is in a deactivated state, In an activated state, the first magnetic body may be spaced apart from the second magnetic body by a second distance greater than the first distance to protrude from the key deactivation region.

In various embodiments, in the second extension region, when the second magnetic body is in a deactivated state, the first magnetic body is spaced apart from the second magnetic body by a first distance to be restored to the same height as the key inactive area, and the second When the magnetic body is in an activated state, the first magnetic body may be in contact with the second magnetic body to be depressed relative to the key deactivation region.

In various embodiments, at least one electromagnet among the plurality of electromagnets may be activated according to key shape information stored in the processor of the electronic device, and the remaining electromagnets among the plurality of electromagnets may be deactivated according to the key shape information.

A display assembly according to an embodiment disclosed in this document includes an actuator including first and second magnetic materials disposed to face each other;

a lifting member disposed on the actuator and moving up and down by a magnetic force generated between the first and second magnetic bodies; and a flexible display disposed on the elevating member and extending at least a portion of the elevating member by a lifting motion of the elevating member.

In various embodiments, any one of the first and second magnetic materials may include at least one permanent magnet, and the other one of the first and second magnetic materials may include a plurality of electromagnets.

In various embodiments, the display device may further include a support member in which the second magnetic body facing the first magnetic body is accommodated, and the first magnetic body may be disposed in the lifting member.

In various embodiments, the flexible display may include a plurality of first extension regions extendable along a rising direction of the lifting member; It may include a plurality of second extension regions disposed between the plurality of first extension regions and extending in a direction opposite to the first extension regions along a descending direction of the lifting member.

In various embodiments, the first magnetic body corresponding to the second stretched region is in contact with the second magnetic body by the attractive force in an activated state of the second magnetic body, and corresponds to the first and second stretched regions The first magnetic material to be formed is spaced apart from the second magnetic material by a first distance in a state in which the second magnetic material is deactivated, and the first magnetic material corresponding to the first stretched region is in a state in which the second magnetic material is activated may be spaced apart from the second magnetic body by a second distance greater than the first distance by the repulsive force.

The various embodiments of this document and the terms used therein are not intended to limit the technology described in this document to a specific embodiment, but it should be understood to include various modifications, equivalents, and/or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for like components. The singular expression may include the plural expression unless the context clearly dictates otherwise. In this document, expressions such as “A or B”, “at least one of A and/or B”, “A, B or C” or “at least one of A, B and/or C” refer to all of the items listed together. Possible combinations may be included. Expressions such as "first," "second," "first," or "second," can modify the corresponding elements regardless of order or importance, and to distinguish one element from another element. It is used only and does not limit the corresponding components. When an (eg, first) component is referred to as being “connected (functionally or communicatively)” or “connected” to another (eg, second) component, that component is It may be directly connected to the component, or may be connected through another component (eg, a third component).

In this document, "adapted to or configured to", depending on the context, for example, hardware or software "suitable for," "having the ability to," "modified to, Can be used interchangeably with ""made to," "capable of," or "designed to." 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 stored in a memory device (eg, memory), for performing the corresponding operations. By executing programs, it may mean a general-purpose processor (eg, CPU or AP) capable of performing corresponding operations.

As used herein, the term “module” includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. can A “module” may be an integrally formed component or a minimum unit or a part that performs one or more functions. A “module” may be implemented mechanically or electronically, for example, known or to be developed, application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs), or It may include a programmable logic device.

At least a portion of an apparatus (eg, modules or functions thereof) or method (eg, operations) according to various embodiments may be implemented as instructions stored in a computer-readable storage medium (eg, memory) in the form of a program module. can When the instruction is executed by a processor (eg, a processor), the processor may perform a function corresponding to the instruction. Computer-readable recording media include hard disks, floppy disks, magnetic media (eg, magnetic tape), optical recording media (eg, CD-ROM, DVD, magneto-optical media (eg, floppy disks), built-in memory, etc.) An instruction may include code generated by a compiler or code that can be executed by an interpreter.

Each of the components (eg, a module or a program module) according to various embodiments may be composed of a single or a plurality of entities, and some sub-components of the aforementioned sub-components may be omitted, or other sub-components may be included. may include more. Alternatively or additionally, some components (eg, a module or a program module) may be integrated into one entity to perform the same or similar functions performed by each corresponding component before being integrated. Operations performed by modules, program modules, or other components according to various embodiments are sequentially, parallelly, repetitively or heuristically executed, or at least some operations are executed in a different order, omitted, or other operations This can be added.

Claims (15)

1. In an electronic device,

   a housing;

   a flexible display disposed in the housing;

   an actuator disposed between the flexible display and the housing, the actuator including first and second magnetic materials generating at least one of a repulsive force and an attractive force so that at least a portion of the flexible display is extendable;

   and a lifting member disposed between the flexible display and the actuator and moving up and down by the magnetic force,

   The flexible display

   and a touch input area extendable in one direction along a rising direction of the lifting member that is raised by one of the repulsive force and the attractive force.
2. The method of claim 1,

   The flexible display

   a plurality of first extension regions including the touch input region;

   a plurality of second extension regions disposed between the plurality of first extension regions and extending in a direction opposite to the first extension regions by the other one of the repulsive force and the attractive force;

   and a key non-active area disposed in an area other than the first and second extension areas.
3. 3. The method of claim 2,

   The first extension region may protrude from the key non-active region,

   The second extension region may be more recessed than the key non-active region.
4. The method of claim 1,

   Further comprising a support member in which the second magnetic body facing the first magnetic body is accommodated,

   The first magnetic body is disposed in the elevating member.
5. 5. The method of claim 4,

   and a fixing frame disposed between the support member and the flexible display to provide an accommodating space for the first and second magnetic bodies and the elevating member.
6. The method of claim 1,

   Any one of the first and second magnetic body includes at least one permanent magnet,

   The other one of the first and second magnetic materials includes a plurality of electromagnets.
7. 7. The method of claim 6,

   and a cell driving circuit electrically connected to each of the plurality of electromagnets and including a plurality of transistors.
8. 8. The method of claim 7,

   The cell driving circuit includes first to sixth transistors,

   the first and fourth transistors are connected to the first and second magnetic control lines, respectively;

   The second transistor is connected to the first transistor, and is connected between one end of the electromagnet and a first magnetic voltage supply line,

   The third transistor is connected to the first transistor, and is connected between the other end of the electromagnet and a second magnetic voltage supply line,

   The fifth transistor is connected to the fourth transistor, and is connected between one end of the electromagnet and a second magnetic voltage supply line,

   The sixth transistor is connected to the fourth transistor, and is connected between the other end of the electromagnet and a first magnetic voltage supply line.
9. 9. The method of claim 8,

   and the second and third transistors are transistors having channels of different polarities from those of the fifth and sixth transistors.
10. 3. The method of claim 2,

    The first magnetic body corresponding to the second extension region is in contact with the second magnetic body by the attractive force when the second magnetic body is activated.
11. 3. The method of claim 2,

    The first magnetic body corresponding to the first extension region is spaced apart from the second magnetic body by a first distance in a state in which the second magnetic body is deactivated,

    The first magnetic body corresponding to the first extension region is spaced apart from the second magnetic body by a second distance greater than the first distance by the repulsive force when the second magnetic body is activated.
12. The method of claim 1,

    The second magnetic material has a first polarity when a current flows in the first direction,

    The second magnetic material has a second polarity when a current flows in a second direction opposite to the first direction.
13. 3. The method of claim 2,

    The first extension area is

    When the second magnetic body is in a deactivated state, the first magnetic body is separated from the second magnetic body by a first distance and restored to the same height as the key inactive area,

    When the second magnetic body is activated, the first magnetic body is spaced apart from the second magnetic body by a second distance greater than the first distance, and protrudes from the key deactivation region.
14. 3. The method of claim 2,

    The second extension area is

    When the second magnetic body is in a deactivated state, the first magnetic body is separated from the second magnetic body by a first distance and restored to the same height as the key inactive area,

    In an activated state of the second magnetic body, the first magnetic body is in contact with the second magnetic body and is depressed from the key deactivation region.
15. The method of claim 1,

    At least one of the plurality of electromagnets is activated according to key shape information stored in the processor of the electronic device,

    The other electromagnets among the plurality of electromagnets are deactivated according to the key shape information.

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