WO2021149851A1 - Dispositif d'affichage flexible - Google Patents

Dispositif d'affichage flexible Download PDF

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Publication number
WO2021149851A1
WO2021149851A1 PCT/KR2020/001187 KR2020001187W WO2021149851A1 WO 2021149851 A1 WO2021149851 A1 WO 2021149851A1 KR 2020001187 W KR2020001187 W KR 2020001187W WO 2021149851 A1 WO2021149851 A1 WO 2021149851A1
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WO
WIPO (PCT)
Prior art keywords
flexible display
display unit
state
plate
mobile terminal
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Application number
PCT/KR2020/001187
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English (en)
Korean (ko)
Inventor
유인석
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2020/001187 priority Critical patent/WO2021149851A1/fr
Publication of WO2021149851A1 publication Critical patent/WO2021149851A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • the present invention relates to a flexible display device having a deformable flexible display.
  • the terminal may be divided into a mobile/portable terminal and a stationary terminal according to whether the terminal can be moved.
  • the mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal depending on whether the user can directly carry it.
  • the mobile terminal may perform functions of data and voice communication, photo and video shooting through a camera, voice recording, music file playback through a speaker system, and output of an image or video to a display unit.
  • some terminals add an electronic game play function or perform a multimedia player function.
  • recent mobile terminals can receive multicast signals that provide broadcast and visual content such as video or television programs.
  • the new form of the mobile terminal means a structural change or improvement thereof for a user to use the mobile terminal more conveniently.
  • a mobile terminal having a flexible display unit has a structure in which at least a portion of the flexible display unit is exposed to the outside, while at least another part is accommodated in the body unit and not exposed to the outside.
  • Such a flexible display device may implement screens of various sizes by using the deformable characteristics of the flexible display.
  • an area exposed to the outside may be extended by withdrawing the flexible display from the body, and a desired screen may be expanded or reduced according to the user's convenience.
  • a portion of the flexible display unit needs to be moved smoothly in a state located inside the body unit, and at least a portion of the flexible display unit outputs a screen to the exposed area in an unfolded and exposed state or to be activated as a touch sensing area will be
  • an empty space may be formed inside the body part by the movement of the body part, so that the extended flexible display part is not supported smoothly, so that there is a fear that unnecessary load is applied to the flexible display.
  • sagging occurs because the flexible display unit is not supported, or when a load is applied to the extended flexible display unit, the flexible display unit is deformed without restriction, so that the flexible display unit is damaged or durability is reduced, and reliability may be secured.
  • the flexible display unit can be supported smoothly even when the exposed area of the flexible display unit is enlarged or reduced according to a change in the state of the flexible display unit, and a method of securing reliability according to the deformation of the flexible display unit is a problem.
  • An object of the present invention is to provide a structure of a flexible display device in which an external exposure area of the flexible display unit may be changed as the flexible display unit is accommodated in or withdrawn from the body unit, and thus ease of use and portability may be improved. is to provide
  • Another object of the present invention is to provide a structure of a flexible display device in which smooth movement of the flexible display unit can be realized and the flexible display unit can be smoothly supported when the flexible display located inside the body unit is drawn out or inserted. is to provide
  • a flexible display device includes a first body; a second body disposed in parallel with the first body and configured to be relatively movable with respect to the first body; a flexible display unit in which an area exposed to the outside is changed by the relative movement of the first body and the second body; a rear plate coupled to the rear surface of the flexible display unit and deformed together with the flexible display unit; and a rotation plate made of a plurality of segmented plates, coupled to the rear surface of the rear plate and deformed corresponding to the shape of the rear plate; And it is made of a wire shape having a constant diameter, is installed to pass through one side of each of the segmented plates to connect at least one segmented plate to each other, and a connecting member whose length changes so that each segmented plate is in close contact with each other.
  • the connecting member when the first body and the second body are mutually moved, the connecting member is deformed to be shortened in length so as to be in close contact with each other between the segment plates supporting the flexible display unit exposed to the outside.
  • the connecting member is made of a plurality, and in response to the relative movement between the first body and the second body, movement may be formed between each adjacent segment plate.
  • the connecting member may be made of a shape memory alloy whose length is shortened or extended according to an applied current.
  • the flexible display unit is installed such that at least a portion is rotatable inside the second body, and at least a portion of the flexible display unit is provided for relative movement of the first body and the second body. Accordingly, the external exposure area may be changed while being rolled or unrolled inside the second body.
  • the flexible display unit may include: a first state in which an area exposed through a rear surface of the second body is increased while the first body and the second body are moved to be adjacent to each other; A second state in which an area exposed through the front portion of the first body increases while the first body and the second body move away from each other may be implemented, respectively.
  • the connecting member connects the segmented plates positioned on the rear surface of the second body to support the flexible display unit exposed through the rear surface of the second body in the first state.
  • the first connection member is deformed to be shortened in the first state to support the flexible display unit exposed through the rear surface of the second body
  • the second connection member includes the It may be installed to support the flexible display unit disposed to have a constant curvature inside the second body in the first state.
  • the first connection member is installed to support a flexible display unit disposed to have a constant curvature inside the second body in the second state
  • the second connection member includes the It may be deformed to be shortened in the second state and installed to support the flexible display unit exposed through the front portion of the first body.
  • a magnet providing a magnetic force for binding with the rear plate may be installed on one side of the segmented plate.
  • the connecting member may include a wire portion positioned to be inserted into the segmented plate; and a connecting member head installed at one end of the wire unit and fixed to one side of the segmented plate, and configured to prevent the wire unit from being separated from the segmented plate.
  • a through hole may be formed at one side of the segmented plate so that the wire part penetrates.
  • a cross-sectional area of the connecting member head may be greater than a cross-sectional area of the through-hole.
  • the flexible display device having the above structure, when a relative motion is made such that the first body and the second body move away from or close to each other, a portion of the flexible display part is inserted or drawn out from the inside of the body part, so that the area exposed to the outside may change. Through this, the user will be able to easily activate the externally exposed area of the flexible display unit to secure convenience and portability.
  • the flexible display unit in which the area exposed to the outside varies according to the relative motion of the first body and the second body, a plurality of segmented plates constituting the rotating plate and a length of a connecting member inserted and installed in the segmented plate through shortening or extension , can be supported smoothly, and it will be possible to limit the impact or unnecessary load applied to the flexible display unit.
  • FIG. 1 is a block diagram illustrating a mobile terminal related to the present invention.
  • FIG. 2A is a perspective view illustrating an external appearance of a front part of the flexible display device in a first state.
  • FIG. 2B is a perspective view illustrating an external appearance of a front part of the flexible display device.
  • 3A is a perspective view illustrating an external appearance of a rear surface of the flexible display device in a first state.
  • FIG. 3B is a perspective view illustrating an external appearance of the rear surface of the flexible display device in the second state.
  • 5A is a conceptual diagram illustrating an internal state of the flexible display device in a first state.
  • FIG. 5B is a conceptual diagram illustrating an internal state of the flexible display device in the second state.
  • Fig. 6A is an enlarged view of Fig. 5A.
  • Fig. 6B is an enlarged view of Fig. 5B.
  • FIG. 7 (a) is a conceptual diagram showing the structure of the rotating plate 240 in the first state.
  • FIG. 7 (b) is a conceptual diagram showing the structure of the rotating plate 240 in the second state.
  • connection pin 260 is coupled between the rotation plate 240 and the rear plate 232 .
  • FIG 10 is a perspective view showing the state of the magnet 250 is installed of the rotating plate (240).
  • 11 is a plan view showing a state of the magnet 250 installed on the rotating plate 240 .
  • the display device described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, and a slate PC.
  • PDA personal digital assistant
  • PMP portable multimedia player
  • slate PC slate PC
  • tablet PC tablet PC
  • ultrabook ultrabook
  • wearable device wearable device, for example, watch-type terminal (smartwatch), glass-type terminal (smart glass), mobile terminals such as HMD (head mounted display)
  • HMD head mounted display
  • a mobile terminal will be described as an example of a flexible display device for convenience of description.
  • FIG. 1 is a block diagram illustrating a mobile terminal related to the present invention.
  • the mobile terminal 100 includes a wireless communication unit 110 , an input unit 120 , a sensing unit 140 , an output unit 150 , an interface unit 160 , a memory 170 , a control unit 180 , and a power supply unit 190 . ) and the like. Since the components shown in FIG. 1 are not essential for implementing the mobile terminal, the mobile terminal described in this specification may have more or fewer components than those listed above.
  • the wireless communication unit 110 among the components is between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 and the external server. It may include one or more modules that enable wireless communication between them. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.
  • the wireless communication unit 110 may include at least one of a broadcast reception module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 , and a location information module 115 . .
  • the input unit 120 includes a camera 121 or an image input unit for inputting an image signal, a microphone 122 or an audio input unit for inputting an audio signal, and a user input unit 123 for receiving information from a user, for example, , a touch key, a push key, etc.).
  • the voice data or image data collected by the input unit 120 may be analyzed and processed as a user's control command.
  • the sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information.
  • the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity.
  • G-sensor gyroscope sensor
  • motion sensor RGB sensor
  • infrared sensor IR sensor: infrared sensor
  • fingerprint sensor fingerprint sensor
  • ultrasonic sensor ultrasonic sensor
  • optical sensors eg, cameras (see 121)
  • microphones see 122
  • battery gauges environmental sensors (eg, barometers, hygrometers, thermometers, radiation detection sensors, It may include at least one of a thermal sensor, a gas sensor, etc.) and a chemical sensor (eg, an electronic nose, a healthcare sensor, a biometric sensor, etc.).
  • the mobile terminal disclosed in the present specification may combine and utilize information sensed by at least two or more of these sensors.
  • the output unit 150 is for generating an output related to visual, auditory or tactile sense, and includes at least one of a display unit 151 , a sound output unit 152 , a haptip module 153 , and an optical output unit 154 . can do.
  • the display unit 151 may implement a touch screen by forming a layer structure with the touch sensor or being formed integrally with the touch sensor. Such a touch screen may function as the user input unit 123 providing an input interface between the mobile terminal 100 and the user, and may provide an output interface between the mobile terminal 100 and the user.
  • the interface unit 160 serves as a passage with various types of external devices connected to the mobile terminal 100 .
  • This interface unit 160 a wired / wireless headset port (port), an external charger port (port), a wired / wireless data port (port), a memory card (memory card) port, for connecting a device equipped with an identification module It may include at least one of a port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port.
  • the mobile terminal 100 may perform appropriate control related to the connected external device.
  • the memory 170 stores data supporting various functions of the mobile terminal 100 .
  • the memory 170 may store a plurality of application programs (application programs or applications) driven in the mobile terminal 100 , data for operation of the mobile terminal 100 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the mobile terminal 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the mobile terminal 100 , and driven to perform an operation (or function) of the mobile terminal by the controller 180 .
  • the controller 180 In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the mobile terminal 100 .
  • the controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 .
  • the controller 180 may control at least some of the components discussed with reference to FIG. 1 in order to drive an application program stored in the memory 170 . Furthermore, in order to drive the application program, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 with each other.
  • the power supply unit 190 receives external power and internal power under the control of the controller 180 to supply power to each component included in the mobile terminal 100 .
  • the power supply 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.
  • At least some of the respective components may operate cooperatively with each other to implement an operation, control, or control method of a mobile terminal according to various embodiments to be described below.
  • the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170 .
  • the broadcast reception module 111 of the wireless communication unit 110 receives a broadcast signal and/or broadcast-related information from an external broadcast management server through a broadcast channel.
  • the broadcast channel may include a satellite channel and a terrestrial channel. Two or more of the broadcast reception modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.
  • the broadcast management server may mean a server that generates and transmits a broadcast signal and/or broadcast-related information or a server that receives and transmits a previously generated broadcast signal and/or broadcast-related information to a terminal.
  • the broadcast signal may include a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, as well as a TV broadcast signal or a broadcast signal in which a data broadcast signal is combined with a radio broadcast signal.
  • the broadcast signal may be encoded according to at least one of technical standards (or broadcast methods, for example, ISO, IEC, DVB, ATSC, etc.) for transmitting and receiving digital broadcast signals, and the broadcast reception module 111 is configured to
  • the digital broadcast signal may be received using a method suitable for technical standards set by technical standards.
  • the broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider.
  • the broadcast-related information may be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112 .
  • the broadcast-related information may exist in various forms, for example, an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or an Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).
  • EPG Electronic Program Guide
  • ESG Electronic Service Guide
  • a broadcast signal and/or broadcast related information received through the broadcast reception module 111 may be stored in the memory 160 .
  • the mobile communication module 112 includes technical standards or communication methods for mobile communication (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), EV -DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced, etc.) transmits/receives a radio signal to and from at least one of a base station, an external terminal, and a server on a mobile communication network constructed in accordance with the present invention.
  • GSM Global System for Mobile communication
  • CDMA Code Division Multi Access
  • CDMA2000 Code Division Multi Access 2000
  • EV -DO Enhanced Voice-Data Optimized or Enhanced Voice-Data Only
  • WCDMA Wideband CDMA
  • HSDPA High Speed Downlink Packet Access
  • HSUPA High Speed Up
  • the wireless signal may include various types of data according to transmission/reception of a voice call signal, a video call signal, or a text/multimedia message.
  • the wireless Internet module 113 refers to a module for wireless Internet access, and may be built-in or external to the mobile terminal 100 .
  • the wireless Internet module 113 is configured to transmit and receive wireless signals in a communication network according to wireless Internet technologies.
  • wireless Internet technologies for example, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), etc.
  • the wireless Internet module ( 113) transmits and receives data according to at least one wireless Internet technology within a range including Internet technologies not listed above.
  • the wireless Internet module 113 performs wireless Internet access through the mobile communication network.
  • the wireless Internet module 113 may be understood as a type of the mobile communication module 112 .
  • the short-range communication module 114 is for short-range communication, and includes BluetoothTM, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, NFC. At least one of (Near Field Communication), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies may be used to support short-range communication.
  • the short-distance communication module 114 is, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 through wireless area networks (Wireless Area Networks). ) and another mobile terminal (100, or an external server) can support wireless communication between the network located.
  • the local area network may be a local area network (Wireless Personal Area Networks).
  • the other mobile terminal 100 is a wearable device capable of exchanging data (or interworking) with the mobile terminal 100 according to the present invention, for example, a smart watch, smart glasses. (smart glass), HMD (head mounted display)).
  • the short-range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 in the vicinity of the mobile terminal 100 .
  • the controller 180 transmits at least a portion of data processed by the mobile terminal 100 to the short-range communication module ( 114) to transmit to the wearable device. Accordingly, the user of the wearable device may use data processed by the mobile terminal 100 through the wearable device.
  • the user when a call is received in the mobile terminal 100, the user performs a phone call through the wearable device, or when a message is received in the mobile terminal 100, the user receives the received call through the wearable device. It is possible to check the message.
  • the location information module 115 is a module for acquiring a location (or current location) of a mobile terminal, and a representative example thereof includes a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module.
  • GPS Global Positioning System
  • Wi-Fi Wireless Fidelity
  • the mobile terminal utilizes a GPS module, it can acquire the location of the mobile terminal by using a signal transmitted from a GPS satellite.
  • the location of the mobile terminal may be obtained based on information of the Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal.
  • AP wireless access point
  • the location information module 115 may perform any function of the other modules of the wireless communication unit 110 to obtain data on the location of the mobile terminal as a substitute or additionally.
  • the location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.
  • the input unit 120 is for input of image information (or signal), audio information (or signal), data, or information input from a user.
  • the mobile terminal 100 has one Alternatively, a plurality of cameras 121 may be provided.
  • the camera 121 processes an image frame such as a still image or a moving image obtained by an image sensor in a video call mode or a photographing mode.
  • the processed image frame may be displayed on the display unit 151 or stored in the memory 170 .
  • the plurality of cameras 121 provided in the mobile terminal 100 may be arranged to form a matrix structure, and through the cameras 121 forming the matrix structure as described above, various angles or focal points are applied to the mobile terminal 100 .
  • a plurality of image information having a plurality of images may be input.
  • the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.
  • the microphone 122 processes an external sound signal as electrical voice data.
  • the processed voice data may be utilized in various ways according to a function (or a running application program) being performed by the mobile terminal 100 .
  • various noise removal algorithms for removing noise generated in the process of receiving an external sound signal may be implemented in the microphone 122 .
  • the user input unit 123 is for receiving information from a user, and when information is input through the user input unit 123 , the controller 180 may control the operation of the mobile terminal 100 to correspond to the input information.
  • the user input unit 123 is a mechanical input means (or, a mechanical key, for example, a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, jog switch, etc.) and a touch input means.
  • the touch input means consists of a virtual key, a soft key, or a visual key displayed on the touch screen through software processing, or a part other than the touch screen. It may be made of a touch key (touch key) disposed on the.
  • the virtual key or the visual key it is possible to be displayed on the touch screen while having various forms, for example, graphics (graphic), text (text), icon (icon), video (video) or these can be made by a combination of
  • the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto.
  • the controller 180 may control the driving or operation of the mobile terminal 100 or perform data processing, functions, or operations related to an application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.
  • the proximity sensor 141 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object existing in the vicinity without mechanical contact using the force of an electromagnetic field or infrared rays.
  • the proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or in the vicinity of the touch screen.
  • the proximity sensor 141 examples include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive type proximity sensor, a magnetic type proximity sensor, and an infrared proximity sensor.
  • the proximity sensor 141 may be configured to detect the proximity of an object having conductivity by a change in an electric field according to the proximity of the object. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.
  • the act of approaching an object on the touch screen without contacting it so that the object is recognized that it is located on the touch screen is called “proximity touch”, and the touch The act of actually touching an object on the screen is called “contact touch”.
  • the position where the object is touched in proximity on the touch screen means a position where the object is perpendicular to the touch screen when the object is touched in proximity.
  • the proximity sensor 141 may detect a proximity touch and a proximity touch pattern (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.) there is.
  • the controller 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further, provides visual information corresponding to the processed data. It can be printed on the touch screen. Furthermore, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) according to whether a touch to the same point on the touch screen is a proximity touch or a contact touch. .
  • the touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. do.
  • the touch sensor may be configured to convert a change in pressure applied to a specific part of the touch screen or a change in capacitance occurring in a specific part of the touch screen into an electrical input signal.
  • the touch sensor may be configured to detect a position, an area, a pressure at the time of a touch, an electrostatic capacitance at the time of a touch, etc. in which a touch object applying a touch on the touch screen is touched on the touch sensor.
  • the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.
  • the touch controller processes the signal(s) and then transmits corresponding data to the controller 180 . Accordingly, the controller 180 can know which area of the display unit 151 has been touched, and the like.
  • the touch controller may be a component separate from the controller 180 , or may be the controller 180 itself.
  • the controller 180 may perform different controls or may perform the same control according to the type of the touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different controls or the same control according to the type of the touch object may be determined according to the current operating state of the mobile terminal 100 or a running application program.
  • the above-described touch sensor and proximity sensor are independently or in combination, a short (or tap) touch on the touch screen (short touch), long touch (long touch), multi touch (multi touch), drag touch (drag touch) ), flick touch, pinch-in touch, pinch-out touch, swype touch, hovering touch, etc. It can sense touch.
  • the ultrasonic sensor may recognize location information of a sensing target by using ultrasonic waves.
  • the controller 180 may calculate the position of the wave source through information sensed by the optical sensor and the plurality of ultrasonic sensors.
  • the position of the wave source may be calculated using the property that light is much faster than ultrasonic waves, that is, the time for light to reach the optical sensor is much faster than the time for ultrasonic waves to reach the ultrasonic sensor. More specifically, the position of the wave source may be calculated using a time difference between the time that the ultrasonic wave arrives using light as the reference signal.
  • the camera 121 as seen in the configuration of the input unit 120 includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.
  • a camera sensor eg, CCD, CMOS, etc.
  • a photo sensor or an image sensor
  • a laser sensor e.g., a laser sensor
  • the camera 121 and the laser sensor may be combined with each other to detect a touch of a sensing target for a 3D stereoscopic image.
  • the photo sensor may be stacked on the display device, and the photo sensor is configured to scan the movement of the sensing target close to the touch screen. More specifically, the photo sensor mounts photo diodes and transistors (TRs) in rows/columns and scans the contents placed on the photo sensor using electrical signals that change according to the amount of light applied to the photo diodes. That is, the photo sensor calculates the coordinates of the sensing target according to the amount of change in light, and through this, location information of the sensing target can be obtained.
  • TRs photo diodes and transistors
  • the display unit 151 displays (outputs) information processed by the mobile terminal 100 .
  • the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information. .
  • the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.
  • a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), or a projection method (holographic method) may be applied to the stereoscopic display unit.
  • the sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like.
  • the sound output unit 152 also outputs a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100 .
  • the sound output unit 152 may include a receiver, a speaker, a buzzer, and the like.
  • the haptic module 153 generates various tactile effects that the user can feel.
  • a representative example of the tactile effect generated by the haptic module 153 may be vibration.
  • the intensity and pattern of vibration generated by the haptic module 153 may be controlled by a user's selection or setting of the controller 180 .
  • the haptic module 153 may synthesize and output different vibrations or output them sequentially.
  • the haptic module 153 is configured to respond to stimuli such as a pin arrangement that moves vertically with respect to the contact skin surface, a jet force or suction force of air through a nozzle or an inlet, a brush against the skin surface, contact of an electrode, an electrostatic force, etc.
  • stimuli such as a pin arrangement that moves vertically with respect to the contact skin surface, a jet force or suction force of air through a nozzle or an inlet, a brush against the skin surface, contact of an electrode, an electrostatic force, etc.
  • Various tactile effects can be generated, such as an effect caused by heat absorption and an effect by reproducing a feeling of cold and heat using an element capable of absorbing or generating heat.
  • the haptic module 153 may not only deliver a tactile effect through direct contact, but may also be implemented so that the user can feel the tactile effect through a muscle sensation such as a finger or arm. Two or more haptic modules 153 may be provided according to the configuration of the mobile terminal 100 .
  • the light output unit 154 outputs a signal for notifying the occurrence of an event by using the light of the light source of the mobile terminal 100 .
  • Examples of the event generated in the mobile terminal 100 may be message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.
  • the signal output from the optical output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors toward the front or rear.
  • the signal output may be terminated when the mobile terminal detects the user's event confirmation.
  • the interface unit 160 serves as a passage with all external devices connected to the mobile terminal 100 .
  • the interface unit 160 receives data from an external device, receives power and transmits it to each component inside the mobile terminal 100 , or transmits data inside the mobile terminal 100 to an external device.
  • a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device equipped with an identification module (port), an audio I/O (Input/Output) port, a video I/O (Input/Output) port, an earphone port, etc. may be included in the interface unit 160 .
  • the identification module is a chip storing various information for authenticating the usage right of the mobile terminal 100, a user identification module (UIM), a subscriber identity module (subscriber identity module; SIM), universal user authentication It may include a universal subscriber identity module (USIM) and the like.
  • a device equipped with an identification module hereinafter, 'identification device' may be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the terminal 100 through the interface unit 160 .
  • the interface unit 160 is a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or is input from the cradle by a user. It may be a path through which various command signals are transmitted to the mobile terminal 100 . Various command signals or the power input from the cradle may be operated as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.
  • the memory 170 may store a program for the operation of the controller 180 , and may temporarily store input/output data (eg, a phone book, a message, a still image, a moving image, etc.).
  • the memory 170 may store data related to vibrations and sounds of various patterns output when a touch input on the touch screen is input.
  • the memory 170 is a flash memory type, a hard disk type, a solid state disk type (SSD), a silicon disk drive type (SDD), and a multimedia card micro type.
  • card-type memory such as SD or XD memory
  • random access memory RAM
  • static random access memory SRAM
  • read-only memory ROM
  • electrically erasable programmable read EEPROM
  • PROM programmable read-only memory
  • magnetic memory a magnetic disk, and an optical disk
  • the mobile terminal 100 may be operated in relation to a web storage that performs a storage function of the memory 170 on the Internet.
  • the controller 180 controls the operation related to the application program and the general operation of the mobile terminal 100 in general. For example, if the state of the mobile terminal satisfies a set condition, the controller 180 may execute or release a lock state that restricts input of a user's control command to applications.
  • the controller 180 performs control and processing related to voice call, data communication, video call, etc., or performs pattern recognition processing capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.
  • the controller 180 may control any one or a plurality of the components described above by combining them.
  • the power supply unit 190 receives external power and internal power under the control of the control unit 180 to supply power necessary for the operation of each component.
  • the power supply unit 190 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging or the like.
  • the power supply unit 190 may include a connection port, and the connection port may be configured as an example of the interface 160 to which an external charger that supplies power for charging the battery is electrically connected.
  • the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port.
  • the power supply unit 190 uses one or more of an inductive coupling method based on a magnetic induction phenomenon or a resonance coupling method based on an electromagnetic resonance phenomenon from an external wireless power transmitter. power can be transmitted.
  • the display unit 151 displays (outputs) information processed by the mobile terminal 100 .
  • the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information. .
  • the display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (Flexible Display).
  • LCD liquid crystal display
  • TFT LCD thin film transistor-liquid crystal display
  • OLED organic light-emitting diode
  • Flexible Display Flexible Display
  • display a three-dimensional display (3D display)
  • e-ink display may include at least one.
  • two or more display units 151 may exist depending on the implementation form of the mobile terminal 100 .
  • a plurality of display units may be spaced apart from each other or disposed integrally on one surface, or may be respectively disposed on different surfaces.
  • the display unit 151 may include a touch sensor for sensing a touch on the display unit 151 so as to receive a control command input by a touch method. Using this, when a touch is made to the display unit 151, the touch sensor detects the touch, and the controller 180 may generate a control command corresponding to the touch based thereon.
  • the content input by the touch method may be letters or numbers, or menu items that can be instructed or designated in various modes.
  • the microphone 122 is configured to receive a user's voice, other sounds, and the like.
  • the microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.
  • the interface unit 160 serves as a passage through which the mobile terminal 100 can be connected to an external device.
  • the interface unit 160 is a connection terminal for connection with another device (eg, earphone, external speaker), a port for short-range communication (eg, infrared port (IrDA Port), Bluetooth port (Bluetooth) Port), a wireless LAN port, etc.], or at least one of a power supply terminal for supplying power to the mobile terminal 100 .
  • the interface unit 160 may be implemented in the form of a socket for accommodating an external card such as a Subscriber Identification Module (SIM), a User Identity Module (UIM), or a memory card for information storage.
  • SIM Subscriber Identification Module
  • UIM User Identity Module
  • At least one antenna for wireless communication may be provided in the terminal body.
  • the antenna may be built into the terminal body or formed in the case.
  • an antenna forming a part of the broadcast reception module 111 (refer to FIG. 1 ) may be configured to be withdrawable from the terminal body.
  • the antenna may be formed in a film type and attached to the inner surface of the housing, and a case including a conductive material may be configured to function as an antenna.
  • the terminal body is provided with a power supply unit 190 (refer to FIG. 1 ) for supplying power to the mobile terminal 100 .
  • the power supply unit 190 may include a battery 191 that is built into the terminal body or is detachably configured from the outside of the terminal body.
  • the battery 191 may be configured to receive power through a power cable connected to the interface unit 160 .
  • the battery 191 may be configured to be wirelessly charged through a wireless charging device.
  • the wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).
  • An accessory for protecting the appearance of the mobile terminal 100 or supporting or extending a function of the mobile terminal 100 may be added.
  • the cover or pouch may be configured to extend the function of the mobile terminal 100 by interworking with the display unit 151 .
  • Fig. 2(a) is a perspective view showing the appearance of the front part of the flexible display device in the first state
  • Fig. 2(b) is a perspective view showing the external appearance of the front part of the flexible display device.
  • a) is a perspective view showing the exterior of the rear surface of the flexible display apparatus in a first state
  • FIG. 3(b) is a perspective view illustrating the exterior of the rear surface of the flexible display apparatus in a second state.
  • the flexible display apparatus 200 may be understood as a type of the above-described mobile terminal because the size of the screen may be changed by deforming the flexible display unit.
  • a mobile terminal will be referred to as a flexible display device.
  • the flexible display apparatus 200 may be configured to have a shape in which the flexible display unit 230 is exposed outside the first body 210 and the second body 220 .
  • the flexible display apparatus 200 exposes the flexible display unit 230 to the front and rear portions of the flexible display apparatus 200, respectively, to provide screens to users in various ways. be able to do
  • the flexible display apparatus 200 is positioned so that the first body 210 and the second body 220 are close to each other, so that the flexible display unit ( The first state in which the area 230 exposed through the front part of the flexible display apparatus 200 is increased can be implemented.
  • the area of the flexible display unit 230 exposed on the rear surface of the flexible display apparatus 200 will be increased.
  • the flexible display apparatus 200 is positioned such that the first body 210 and the second body 220 are spaced apart from each other, so that the flexible display apparatus 200 is a flexible display apparatus. It is possible to implement a second state in which the area of the flexible display unit 230 exposed through the front portion of 200 increases.
  • the flexible display apparatus 200 can be switched between the first state and the second state according to the mutual movement of the first body 210 and the second body 220 .
  • the flexible display exposed on the front part according to the movement of the flexible display apparatus 200 in the first direction is referred to as a first direction.
  • the area of the part 230 may be enlarged in the first direction.
  • the area of the flexible display unit 230 exposed through the rear surface will decrease along the first direction.
  • the area of the flexible display unit 230 exposed on the front part may decrease along the second direction.
  • the area of the flexible display unit 230 exposed on the rear surface will increase in the second direction.
  • the flexible display apparatus 200 may include a flexible display unit 230 configured to be deformable by an external force.
  • the deformation may mean at least one of bending, bending, folding, twisting, and curling of the display module.
  • a deformable display module may be referred to as a 'flexible display'.
  • the flexible display unit 230 may include both a general flexible display, e-paper, and a combination thereof.
  • a general flexible display refers to a durable display that is not easily broken because it is manufactured on a thin and flexible substrate that can be bent, bent, folded, twisted or curled like paper while maintaining the characteristics of a conventional flat panel display.
  • electronic paper is a display technology to which characteristics of general ink are applied, and may differ from conventional flat panel displays in that it uses reflected light.
  • Electronic paper can change information by using a twisted ball or by using electrophoresis using a capsule.
  • one side of the flexible display unit 230 is deformed by an external force (eg, it may have a finite radius of curvature), and a first body 210 . ) and the second body 220 , the position of the deformed one side of the flexible display unit 230 may be changed.
  • an external force eg, it may have a finite radius of curvature
  • the flexible display unit 230 may output visual information through an exposed screen in the first state and the second state. Such visual information is implemented by independently controlling the light emission of sub-pixels arranged in a matrix form.
  • the unit pixel means a minimum unit for realizing one color.
  • the flexible display unit 230 may be placed in a bent state (eg, a state with a constant curvature along the outer surface of the roller 241 ) rather than a flat state in each of the first state and the second state.
  • the flexible display unit 230 When an external force is applied to the flexible display unit 230 , the flexible display unit 230 may be deformed into a flat state (or less curved) or more curved.
  • the flexible display unit 230 may be combined with a touch sensor to implement a flexible touch screen (not shown).
  • the controller 180 (refer to FIG. 1 ) may perform a control corresponding to the touch input.
  • the flexible touch screen may be configured to sense a touch input not only in the first state but also in the second state.
  • the flexible display apparatus 200 may be provided with a deformation detecting means capable of detecting the deformation of the flexible display unit 230 .
  • a deformation detecting means capable of detecting the deformation of the flexible display unit 230 .
  • Such deformation detecting means may be included in the sensing unit 140 (refer to FIG. 1).
  • the deformation detecting means may be provided on one side or the body 210 and 220 of the flexible display unit 230 to detect information related to the deformation of the flexible display unit 230 .
  • the information related to the deformation may be a direction in which the flexible display unit 230 is deformed, a deformed degree, a deformed position, a deformed time, and an acceleration at which the deformed flexible display unit 230 is restored.
  • the flexible display unit 230 may be a variety of detectable information due to bending.
  • the controller 180 may change the information displayed on the flexible display unit 230 or change the information displayed on the flexible display unit 230 based on the information related to the deformation of the flexible display unit 230 sensed by the deformation detecting means.
  • a control signal for controlling a function of the display apparatus 200 may be generated.
  • the state transformation of the flexible display unit 230 is not limited only to an external force.
  • the flexible display unit 230 when it is in the first state, it may be transformed into the second state by a command of a user or an application, and may be transformed from the second state to the first state in the same manner.
  • the flexible display apparatus 200 may include a case (eg, a frame, a cover, etc.) forming an exterior.
  • the case may include a first body 210 and a second body 220 , and various electronic components may be disposed inside the first body 210 and the second body 220 .
  • the first body 210 and the second body 220 may be configured to form an external appearance of the flexible display unit 230 , and the second body 220 may be slid along the first body 210 to form an external shape of the flexible display unit 230 . While moving, the first state and the second state can be formed, respectively.
  • the flexible display unit 230 may be coupled to one surface of the first and second bodies 210 and 220 connected to each other so as to be movable relative to each other, respectively, and the movement of the first body 210 and the second body 220 .
  • the exposed area may vary depending on the
  • the flexible display unit 230 may include a first area 230a, a second area 230b, and a third area 230c.
  • the first region 230a is a region that is fixedly installed on the front surface of the first body 210 and is always exposed to the outside regardless of a change in the state of the flexible display apparatus 200 .
  • a third region 230c adjacent to the first region 230a in the first direction may partially cover the front surface of the second body 220 and partially cover the rear surface of the second body 220 , respectively. .
  • the second region 230b is positioned adjacent to the third region 230c and refers to a region exposed to the outside from the rear surface of the second body 220 .
  • the second region 230b is installed so that one end is fixed to the sliding member 231 sliding in the first direction with respect to the second body 220 .
  • the flexible display unit 230 includes a first area 230a fixed to the first body 210 and always exposed to the outside, a second area 230b having one end fixed to the sliding member 231 , and a first area.
  • the third region 230c is located between the 230a and the second region 230b and is exposed to the outside from the front part or the rear part depending on the state of the flexible display apparatus 200 .
  • the curvature of the first region 230a and the second region 230b does not change and maintains a flat basic state, but the third region 230c is formed such that its shape is rolled or unrolled inside the second body 220 . can be deformed.
  • the area of the third region 230c may increase or decrease.
  • the deformed position in the third region 230c may vary depending on the sliding position of the second body 220 .
  • the flexible display apparatus 200 may include a case (eg, a frame, a cover, etc.) forming an exterior.
  • the case may include the first body 210 and the second body 220 , and various electronic components may be disposed inside the first body 210 and the second body 220 .
  • the flexible display apparatus 200 may further include a rear plate 232 coupled to the rear surface of the flexible display unit 230 so that rolling and unrolling of the flexible display unit 230 may be smoothly performed.
  • FIG. 4 is an exploded perspective view of the flexible display apparatus 200 .
  • the flexible display apparatus 200 may include a first body 210 , a second body 220 , a flexible display unit 230 , a rear plate 232 , and a rotation plate 240 .
  • the first body 210 and the second body 220 may form the appearance of the flexible display unit 230 .
  • the second body 220 may implement the first state and the second state of the flexible display apparatus 200 while sliding along the first body 210 to move relative to each other.
  • the relative movement of the first body 210 and the second body 220 may be implemented while the sliding member 231 coupled to one end of the rotation plate 240 moves along the first body 210 .
  • the flexible display unit 230 may be coupled to one surface of the first and second bodies 210 and 220 connected to each other so as to be movable relative to each other, respectively, and the movement of the first body 210 and the second body 220 . Accordingly, the area exposed to the outside will be able to change.
  • the first area 230a of the flexible display unit 230 may be coupled to the front portion of the first body 210 . Since the rear portion of the first body 210 is always exposed to the outside, a camera, a flash, a proximity sensor, or the like may be disposed.
  • a side portion (not shown) is formed around the first body 210 , and the side portion forms the exterior of the flexible display device 200 except for an end in the first direction into which the second body 220 is inserted or withdrawn. is done
  • an interface for connecting a power port or an ear jack or a user input unit such as a volume button may be disposed on the side portion.
  • the side part includes a metal material, it can serve as an antenna.
  • the second body 220 may be coupled to the side of the first body 210 , and may support the expanded flexible display unit 230 of the front part when the first state is switched to the second state.
  • the side portion of the second body 220 may be made of an opaque material or a transparent material.
  • a transparent region is formed on the side surface of the second body 220 , so that an image or text output from the flexible display unit 230 can be exposed to the outside.
  • the second body 220 may slide with respect to the first body 210 to move closer to or away from the first body 210 , and the second body 220 may move toward the first body 210 . to form a first state in which the first body 210 and the second body 220 are in close contact with each other, or a second state in which the first body 210 and the second body 220 are spaced apart from each other can be formed
  • the rear portion of the second body 220 may be configured to support a portion of the third region 230c of the flexible display unit 230 .
  • a transparent rear window 222 is formed on the rear surface of the second body 220 , the flexible display unit 230 may be exposed to the outside through the rear surface of the second body 220 .
  • the second body 220 is supported on the side surface of the first body 210 , and when the first state is switched to the second state, supports the rear surface of the expanded flexible display unit 230 and is flexible in the second state.
  • the third area 230c of the display unit 230 may be supported.
  • a rotating member 221 extending in one direction may be installed on one side of the second body 220 .
  • the rotating member 221 may be formed in the shape of an extension rod having a circular cross-section.
  • the rotating member 221 has a cylindrical shape, is rotatable inside the second body 220 , and serves to wind the flexible display unit 230 .
  • the rotating member 221 may be installed to be rotatable inside the second body part 220 .
  • one side of the flexible display unit 230 may be rolled or unrolled along the outer surface of the rotating member 221 .
  • the rotating member 221 serves to guide one side of the third region 230c of the flexible display unit 230 to be deformed to a state having a constant curvature, and in this case, the third region 230c One side will be in a deformed state while forming a curved surface together with the rear plate 232 .
  • the flexible display unit 230 includes a first area 230a fixed to the first body 210 , a second area 230b fixed to the support plate 231 , and a first area 230a and a second area. It may be located between the regions 230b and may include a third region 230c that may be disposed on the front part or the rear part according to the state of the flexible display apparatus 200 . In this case, the third region 230c is formed on the front or rear surface of the flexible display apparatus 200 according to the first state and the second state due to the mutual movement of the first body 210 and the second body 220 . can be placed.
  • a sliding member 231 may be installed at one end of the flexible display unit 230 .
  • the sliding member 231 may be formed of a plate-shaped member slidable along the rear surface of the second body 220 .
  • the sliding member 231 supports one side of the flexible display unit 230 , and the second body 220 approaches the first body 210 , or the second body 220 moves the first body 210 . ), the sliding member 231 may move relative to the second body 220 by an amount corresponding to the movement distance of the second body 220 .
  • the flexible display unit 230 moves the first distance It will move by a second distance (2d) that is twice that of (d).
  • the sliding member 231 sliding along the second body 220 is the same distance as the second body 220 ( d) will be moved.
  • the rear plate 232 is coupled to the rear surface of the flexible display unit 230 to support it. Also, the rear plate 232 may be formed integrally with the flexible display unit 230 and may be deformed together with the flexible display unit 230 .
  • the rear plate 232 may be made of a thin superelastic titanium alloy so that stress applied to the flexible display unit 230 can be minimized.
  • the rear plate 232 may be made of a material having a yield strain of approximately 2.0 to 2.5% (based on 0.3 mm thickness) as a superelastic titanium alloy.
  • the rear plate 232 may be made of not only superelastic titanium alloy, but also titanium-nickel-based (Ti-Ni), titanium-aluminum (Ti-Al), and thin-film stainless steel (STS).
  • the front portion of the rear plate 231 may be closely coupled to the rear portion of the flexible display unit 230 , and one side of the rear portion of the rear plate 231 is a rotating member 221 installed inside the second body 220 . may be rolled or unrolled along the outer surface of
  • the flexible display unit 230 may be coupled to the rear plate 231 through an adhesive member (not shown).
  • the adhesive member serves to couple the rear surface portion and the rear plate 231 of the flexible display unit 230, and the adhesive member (not shown) is the rear plate 231 and the flexible display unit 230 are deformed. As a result, a space is formed between the rear plate 232 and the flexible display unit 230 to prevent the flexible display unit 230 from being lifted, and may be made of a material having a flexible characteristic.
  • the adhesive member prevents the generation of stress that may occur between the rear plate 231 or the flexible display unit 230, thereby limiting the flexible display unit 230 from being damaged by an external force. There will be.
  • the adhesive member (not shown) may be made of a resin having elasticity by using a synthetic epoxy resin or the like. Accordingly, through an adhesive member (not shown), the flexible display unit 230 and the rear plate 232 are closely coupled, and even if one side of the flexible display unit 230 is deformed, in response thereto, the rear plate 232 . to allow for smooth transformation with
  • the flexible display apparatus 200 may include a rotation plate 240 coupled and installed on the rear surface of the rear plate 232 , and a connection member 241 supporting the rotation plate 240 .
  • the rotating plate 240 may be coupled to the rear portion of the rear plate 232 to be deformed corresponding to the deformed shapes of the flexible display unit 230 and the rear plate 232 .
  • a connecting member 241 having a wire shape having a constant diameter and shortened or extended in length in response to the movement of the rotating plate 240 may be installed.
  • the internal structure of the flexible display apparatus 200 according to the first state and the second state will be described in detail through a cross-sectional view of the flexible display apparatus 200 to be described later.
  • FIG. 5A is a conceptual diagram illustrating an internal state of the flexible display apparatus 200 in a first state
  • FIG. 5B is an internal state of the flexible display apparatus 200 in a second state.
  • It is a conceptual diagram representing 6A is an enlarged view of FIG. 5A
  • FIG. 6B is an enlarged view of FIG. 5B.
  • the first body 210 and the second body 220 support one region of the flexible display unit 230, respectively, and the flexible display device ( A plurality of electronic components for driving 200 ) and a battery for forming a power source may be mounted.
  • the flexible display apparatus 200 is configured such that the second body 220 is slidable with respect to the first body 210 , so that the first body 210 and the second body 220 are positioned close to each other to expose the rear portion It is possible to implement the first state configured to increase the area.
  • the flexible display apparatus 200 can be switched to a second state in which the exposure area of the front part is increased while the first body 210 and the second body 220 are positioned to be apart from each other.
  • the user can more conveniently use screens of various sizes by utilizing the respective regions 230a, 230b, and 230c of the flexible display unit 230, and thus can be used to perform various tasks such as e-books and web surfing. be able to
  • the flexible display apparatus 200 may include a rotation plate 240 coupled to the rear surface of the rear plate 232 , and a connection member 241 installed on the rotation plate 240 .
  • the rotation plate 240 serves to support at least a portion of the flexible display unit 230 .
  • the rotating plate 240 may include a plurality of segmented plates 240a that are arranged in parallel with each other.
  • a protrusion (not shown) formed to protrude toward an adjacent segmented plate 240a is formed on one side of the central portion of each segmented plate 240a, and a protrusion (not shown) of the adjacent segmented plate 240a is formed on the other side of the central portion )
  • a depression (not shown) may be formed to be recessed to correspond to the shape of the .
  • each of the segmented plates 240a may be arranged in parallel with each other while the protrusion (not shown) is positioned at the depression (not shown).
  • the rotation plate 240 is coupled to the rear plate 232 , and the rotation plate 240 includes at least one region of the front and rear portions of the flexible display unit 230 , and flexible
  • the display unit 230 may be installed to cover the rolled or unrolled area.
  • One end of the rotation plate 240 may be coupled to the support plate 211 installed on the rear surface of the first body 210 , and the other end may be coupled to the sliding member 231 . Accordingly, when the flexible display apparatus 200 is changed from the first state to the second state and from the second state to the first state, the rotation plate 240 is a portion of the first region 230a and the second region 230b. and the shape of the third region 230c may be deformed so as to be positioned on the rear side thereof.
  • the rotation plate 240 may be deformed to correspond to the deformed shape of the flexible display unit 230 .
  • the rotating plate 240 is disposed on the front side of the flexible display device 200 of the flexible display unit 230 . It may be positioned to cover the exposed area, the area rolled by the rotating member 220 , and the exposed area on the rear surface of the flexible display apparatus 200 .
  • the rotating plate 240 is the front surface of the flexible display apparatus 200 of the flexible display unit 230 . It may be positioned to cover a region exposed to the portion, an area rolled by the rotating member 220 , and an area exposed to the rear surface of the flexible display apparatus 200 .
  • the rotation plate 240 may serve to support the space formed between the first body 210 and the second body 220 .
  • the rotation plate 240 is positioned to fully support the extended third area 230c exposed on the front surface by the flexible display unit 230 being deformed.
  • the rotating plate 240 may include a plurality of segmented plates 240a that are arranged in parallel with each other. A predetermined interval may be formed between the segmented plates 240a disposed adjacent to each other. The rotating plate 240 may be deformed to correspond to the deformed shape of the flexible display unit 230 . In this case, each adjacent segmented plate 240a has a relatively rotated state by a predetermined rotational angle.
  • the connecting member 241 may be installed to pass through one side of each segmented plate 240a to connect at least one segmented plate 240a to each other.
  • connection member 241 may be formed in plurality so as to be installed at a plurality of locations of the rotation plate 240 .
  • the connection member 241 corresponds to the relative movement between the first body 210 and the second body 220 , and serves to form a movement between each adjacent segment plate 240a.
  • the connecting member 241 may be formed in the shape of a wire having a constant diameter.
  • the connecting member 241 may be made of shape memory alloy (SMA).
  • SMA shape memory alloy
  • the connecting member 241 may be deformed to be shortened or extended in length according to a change in the state of the flexible display unit 200 .
  • Shape memory alloy has a different arrangement of crystals on the high-temperature side (parent phase) and low-temperature side (martensite phase), so even if the shape is deformed on the low-temperature side, a constant temperature (reverse It refers to a material having the property of returning to its original form (mother phase) when heated above the transformation temperature).
  • Examples of the shape memory alloy (SMA) include a nickel-titanium alloy, a copper-zinc alloy, a gold-cadmium alloy, and an indium-thallium alloy.
  • connection member 241 made of a shape memory alloy (SMA) may be deformed to shorten its length when a constant power is applied when the first body 210 and the second body 220 are mutually moved. .
  • SMA shape memory alloy
  • each segmented plate 240a will be in close contact with each other.
  • the connecting member 241 When the length of the connecting member 241 is shortened, the connecting member 241 is positioned so that the connecting member 241 is penetrated between the segmented plates 240a supporting the externally exposed flexible display unit 230, so that the distance between them is reduced. will become close to each other.
  • a through hole (not shown) may be formed at one side of the segmented plates 240a so that the wire-shaped connecting member 241 may pass therethrough.
  • the rotation plate 240 may be disposed to support the flexible display unit 230 positioned on the rear surface of the flexible display apparatus 200 .
  • one side of the rotation plate 240 extends between the first body 210 and the second body 220 . It can be deformed to support the flexible display unit 230 .
  • FIG. 7 (a) is a conceptual diagram showing the structure of the rotating plate 240 in the first state
  • Figure 7 (b) is a conceptual diagram showing the structure of the rotating plate 240 in the second state
  • (a), (b) and (c) of FIGS. 8A and 8B show a first connection member 241a and a second connection member coupled to the rotation plate 240 when the flexible display apparatus 200 is in the second state. It is a conceptual diagram showing the state of (241b).
  • the flexible display unit 230 may be installed such that at least a part of it is rotatable inside the second body 220 , and by the relative movement of the first body 210 and the second body 220 , the flexible display unit As reference numeral 230 is rolled or unrolled inside the second body 220 , the external exposure area may be changed.
  • the flexible display unit 230 has a first state in which the first body 210 and the second body 220 are positioned adjacent to each other and the area exposed through the rear surface of the second body 220 is increased. , the first body 210 and the second body 220 move away from each other, so that the second state in which the area exposed through the front part of the first body 210 is increased can be realized, respectively.
  • the rotation plate 240 may be formed to be deformed in shape in response to the deformation of the flexible display unit 230 .
  • the rotation plate 240 is sequentially deformed by each segmented plate 240a.
  • a change may be made from the first state to the second state in FIG.
  • the connecting member 241 is fixed to one side of the segmented plate 240a by being installed at the end of the wire portion 241a'' and the wire portion 241a'' positioned to be inserted into the segmented plate 240a.
  • a connecting member head 241a' for preventing the wire portion 241a'' from being separated from a through hole (not shown) formed in the segmenting plate 241a may be included.
  • the connecting member head 241a' may be coupled to be fitted to the wire part 241a''. As shown in (b) of FIG. 8, the wire part 241a'' can be deformed with a constant curvature to correspond to the deformed rotating plate 240 with a constant curvature.
  • the wire part 241a'' is made of shape memory alloy (SMA)
  • its length may be deformed by receiving a constant power. For example, when power is applied to the wire part 241a'', the length may be shortened, and in this case, the wire part 241a'' will apply an external force so as to be in close contact between the segmented plates 240a. will be.
  • SMA shape memory alloy
  • the connecting member head 241a' since the cross-sectional area of the connecting member head 241a' is greater than the cross-sectional area of the through-hole (not shown), it is possible to prevent the wire part 241a'' from being separated into the through-hole (not shown). There will be. When the length of the wire portion 241a'' is changed, the connecting member head 241a' will be able to transmit an external force to the segmented plate 240a in response thereto.
  • the connecting member 241 may include a first connecting member 241a and a second connecting member 241b.
  • the first connecting member 241a and the second connecting member 241b are installed to pass through the rotation plate 240 , and their length may be shortened or extended in response to the deformed flexible display unit 230 .
  • the first connecting member 241a and the second connecting member 241b may be installed at a position spaced apart from the rotation plate 240, and the first connecting member 241a is inserted into the segmented plate 240a and the second connecting member 241b.
  • the segmented plate 240a into which the second connecting member 241b is inserted will not be the same, but in any one of the plurality of segmented plates 240a, the first connecting member 241a and the second connecting member 241b are both It will also be possible to insert installation.
  • the first connection member 241a is a segmented plate 240a positioned on the rear surface of the second body 220 so as to support the flexible display unit 230 exposed through the rear surface of the second body 220 . ) can be installed to connect
  • the first connecting member 241a may be installed to pass through each segmented plate 240a positioned to cover an area immediately before the flexible display unit 230 is rolled.
  • the second connecting member 241b is installed to pass through each segmented plate 240a positioned to cover the area rolled along the rotating member 221 of the flexible display unit 230 in the first state, so that the flexible display unit be able to support
  • the length may be shortened by supplying power only to the first connection member 241a, and the length may be maintained by not supplying power to the second connection member 241b. This is to supply power of a certain size only to the first connection member 241a to shorten the length thereof.
  • the flexible display unit 230 exposed through the rear surface of the flexible display apparatus 200 is supported more smoothly. can be accomplished.
  • the first connection member 241a may be installed to support the flexible display unit disposed to have a predetermined curvature inside the second body 220 .
  • the first connecting member 241a serves to support a region of the flexible display unit positioned to roll along the outer circumferential surface of the flexible display unit 221 .
  • the second connection member 241b may be installed to support the flexible display unit 230 exposed through the front portion of the first body 210 .
  • each segment plate 240a is brought into close contact with the flexible display device 200 exposed through the rear surface thereof.
  • the display unit 230 can be supported more smoothly.
  • the first connection member 241a may be deformed to be shortened in the first state, and in this case, it will be possible to support the flexible display unit 230 exposed through the rear surface of the second body 220 .
  • the second connection member 241b may be deformed to be shortened in the second state, and in this case, it will be possible to support the flexible display unit 230 exposed through the front portion of the first body 210 . .
  • power may be selectively supplied to the first connection member 241a and the second connection member 241b according to a change in the state of the flexible display apparatus 200 , and the length of the first connection member changes according to the temperature change.
  • each of the segmented plates 240a is placed in close contact, thereby making it possible to more firmly support the expanded flexible display unit 230 .
  • connection pin 260 is coupled between the rotation plate 240 and the rear plate 232 .
  • the shape of the rotation plate 240 and the rear plate 232 may be deformed.
  • segmented plate (240a) adjacent to each other segmented plate (240a) mutual rotation between them.
  • the thickness of the rotation plate 240 and the rear plate 232 are different, relative movement is made between the rotation plate 240 and the rear plate 232, thereby limiting the formation of a curve in the rear plate 232 It will be possible to implement a smooth movement of
  • connection pin 260 may be fixed to the rear plate 232 , and in response to the movement of the rotation plate 240 , it is possible to move along the connection pin guide 232a formed to pass through the rear plate 232 . .
  • connection pin 260 is formed to pass through the rotation plate 240 and the rear plate 232 .
  • the connecting pin guide (232a) By reciprocating along the connecting pin guide (232a), the deformation of the rotation plate 240 and the rear plate 232 can be made more smoothly.
  • FIG. 10 is a perspective view showing the state of the magnet 250 installed in the rotating plate 240
  • FIG. 11 is a plan view showing the state of the magnet 250 installed in the rotating plate (240).
  • a magnet 250 exhibiting a certain magnetism may be installed on one side of the rotating plate 240 .
  • the magnet 250 allows for more smoothly fixing in the Z-axis direction with the back plate 232 made of metal.
  • a plurality of magnets 250 may be configured to be respectively installed on one side of the plurality of segmented plates 240a.
  • the magnet 250 serves to provide a magnetic force for binding with the rear plate 232 .
  • the magnet 250 may be fixedly installed in a region formed to be recessed on the upper surface of the plurality of segmented plates 240a.
  • the plurality of magnets 250 may be disposed to be symmetrical to both sides of the plurality of segmented plates 240a.
  • the plurality of magnets 250 are arranged to be symmetrical at both ends of the plurality of segmented plates 240a, so that, despite the deformation of the rotating plate 240, coupling with the rear plate 232 can be maintained.
  • the magnet 250 may be disposed at a position that does not overlap with each of the connecting members 241a and 241b in the vertical direction.
  • the present invention may be implemented or applied in various ways in industrial fields that produce or use a mobile terminal having a flexible display.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne un dispositif d'affichage flexible comprenant : un premier corps ; un second corps qui est disposé de façon à être parallèle au premier corps et qui peut se déplacer par rapport au premier corps ; une unité d'affichage flexible dont la zone qui est exposée à l'extérieur est modifiée par le mouvement relatif entre le premier corps et le second corps ; une plaque arrière couplée à la partie de surface arrière de l'unité d'affichage flexible de façon à être modifiée conjointement avec l'unité d'affichage flexible ; et une plaque rotative qui comprend une pluralité de plaques segmentées et qui est couplée à la partie de surface arrière de la plaque arrière de façon à être modifiée en fonction de la forme de la plaque arrière ; et un élément de raccordement qui possède une forme de fil avec un diamètre prédéterminé est prévu pour relier ensemble une ou plusieurs plaques segmentées par l'intermédiaire d'un côté de chacune des plaques segmentées respectives, et sa longueur varie de façon à ce que les plaques segmentées respectives entrent en contact étroit l'une avec l'autre.
PCT/KR2020/001187 2020-01-23 2020-01-23 Dispositif d'affichage flexible WO2021149851A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/001187 WO2021149851A1 (fr) 2020-01-23 2020-01-23 Dispositif d'affichage flexible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/001187 WO2021149851A1 (fr) 2020-01-23 2020-01-23 Dispositif d'affichage flexible

Publications (1)

Publication Number Publication Date
WO2021149851A1 true WO2021149851A1 (fr) 2021-07-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114078389A (zh) * 2021-11-12 2022-02-22 京东方科技集团股份有限公司 柔性显示面板及显示装置
US12108552B2 (en) * 2020-05-07 2024-10-01 Samsung Electronics Co., Ltd. Electronic device including flexible display

Citations (5)

* Cited by examiner, † Cited by third party
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US20140211399A1 (en) * 2011-09-02 2014-07-31 Microsoft Corporation Expandable mobile device
KR20170025520A (ko) * 2015-08-28 2017-03-08 이유구 롤러블 디스플레이를 갖는 휴대용 단말기
KR20170143112A (ko) * 2016-06-20 2017-12-29 엘지디스플레이 주식회사 롤러블 표시장치
KR20190141518A (ko) * 2018-06-14 2019-12-24 삼성전자주식회사 디스플레이 영역의 크기 변경이 가능한 플렉시블 디스플레이를 포함하는 전자 장치 및 그 제어 방법
KR20200007366A (ko) * 2018-07-13 2020-01-22 엘지디스플레이 주식회사 플렉서블 디스플레이 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140211399A1 (en) * 2011-09-02 2014-07-31 Microsoft Corporation Expandable mobile device
KR20170025520A (ko) * 2015-08-28 2017-03-08 이유구 롤러블 디스플레이를 갖는 휴대용 단말기
KR20170143112A (ko) * 2016-06-20 2017-12-29 엘지디스플레이 주식회사 롤러블 표시장치
KR20190141518A (ko) * 2018-06-14 2019-12-24 삼성전자주식회사 디스플레이 영역의 크기 변경이 가능한 플렉시블 디스플레이를 포함하는 전자 장치 및 그 제어 방법
KR20200007366A (ko) * 2018-07-13 2020-01-22 엘지디스플레이 주식회사 플렉서블 디스플레이 장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12108552B2 (en) * 2020-05-07 2024-10-01 Samsung Electronics Co., Ltd. Electronic device including flexible display
CN114078389A (zh) * 2021-11-12 2022-02-22 京东方科技集团股份有限公司 柔性显示面板及显示装置
CN114078389B (zh) * 2021-11-12 2024-05-14 京东方科技集团股份有限公司 柔性显示面板及显示装置

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