WO2022158614A1 - Terminal mobile - Google Patents

Terminal mobile Download PDF

Info

Publication number
WO2022158614A1
WO2022158614A1 PCT/KR2021/000862 KR2021000862W WO2022158614A1 WO 2022158614 A1 WO2022158614 A1 WO 2022158614A1 KR 2021000862 W KR2021000862 W KR 2021000862W WO 2022158614 A1 WO2022158614 A1 WO 2022158614A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
frame
mobile terminal
display unit
flexible display
Prior art date
Application number
PCT/KR2021/000862
Other languages
English (en)
Korean (ko)
Inventor
권우용
양승수
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2021/000862 priority Critical patent/WO2022158614A1/fr
Publication of WO2022158614A1 publication Critical patent/WO2022158614A1/fr

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Definitions

  • the present invention relates to a mobile terminal having a flexible display and being capable of expanding the size of a screen while the display scrolls and slides at the same time.
  • the terminal may be divided into a mobile/portable terminal and a stationary terminal according to whether the terminal is movable.
  • the mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can carry it directly.
  • Functions of mobile terminals are being diversified. For example, there are functions for data and voice communication, photography and video recording through a camera, voice recording, music file playback through a speaker system, and outputting an image or video to the 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.
  • a terminal is diversified in functions, for example, a multimedia device having complex functions such as shooting a picture or a video, playing a music or a video file, a game, receiving a broadcast, etc. (Multimedia player) ) is implemented in the form
  • the size of the mobile terminal can be changed by using the deformable property of the flexible display.
  • a size change of the mobile terminal must be made stably, and a structure supporting the extended display unit to maintain a flat surface is required.
  • An object of the present invention is to provide a mobile terminal capable of improving durability of the flexible display unit by not limiting the bending point of the flexible display unit to a specific position.
  • Another object of the present invention is to solve the problem that the support bar of the rolling hinge is transferred to the flexible display unit of the flexible display unit due to the stress of the rear structure of the flexible display unit and is visible in the front.
  • a flexible display unit including a fixing unit attached to the front surface of the body and a variable unit having a variable curvature that is positioned in a first direction of the fixing unit, wherein the flexible display unit includes: a display panel on which an image is output; a back plate positioned on a rear surface of the display panel; and a first tape and a second tape positioned between the back plate of the display panel, wherein the second tape is positioned in a first direction of the first tape, and the adhesive force of the first tape is the second tape It provides a mobile terminal, characterized in that greater than the adhesive force of the tape, and the ductility of the second tape is greater than that of the first tape.
  • the first tape may be positioned on the fixing part, and the second tape may be positioned on a part of the fixing part and the variable part.
  • a boundary between the first tape and the second tape may be disposed adjacent to the variable portion.
  • the front surface of the body includes a flat portion and a curved portion located in a second direction opposite to the first direction, and a boundary between the first tape and the second tape is located on the flat portion and adjacent to the curved portion can be placed.
  • a gap may be formed between the first tape and the second tape and may be spaced apart.
  • a bridge resin filling a gap between the first tape and the second tape may be further included.
  • a thickness of the bridge resin may be the same as or less than a thickness of the first tape and the second tape.
  • the first tape includes a first lower tape and a first upper tape overlappingly laminated on the first lower tape and including an extension in the first direction
  • the second tape comprising a second lower tape and the second tape a second upper tape overlapping and stacked on the lower tape and including an extension in a second direction opposite to the first direction, wherein the extension of the first upper tape covers an upper portion of the extension of the second upper tape and can be nested.
  • the thickness of the first lower tape and the second upper tape may be the same, and the thickness of the first upper tape and the second lower tape may be the same.
  • a thickness of the second lower tape may be 50% or less of a thickness of the second upper tape.
  • a first distance may be spaced apart between the first lower tape and the second upper tape, and a second distance smaller than the first distance may be spaced apart between the first upper tape and the second lower tape.
  • the first tape further comprises a first intermediate tape positioned between the first upper tape and the first lower tape, the second tape being a first intermediate tape positioned between the second upper tape and the second lower tape. It further includes 2 intermediate tapes, wherein the sum of the thicknesses of the first intermediate tape and the first upper tape may be formed to correspond to the sum of the thicknesses of the second intermediate tape and the second lower tape.
  • the thickness of the second intermediate tape may be 50% or less of the thickness of the second upper tape.
  • the body may include: a first frame to which a fixing part of the flexible display unit is attached to a front surface; and a second frame that slides in a first direction or a second direction opposite to the first direction with respect to the first frame, wherein the variable portion of the flexible display unit forms a curved surface and is bent toward the rear surface of the second frame. and the position of the curved surface may change according to the sliding movement of the second frame.
  • the body includes a first frame; and a second frame disposed adjacent to the first frame and having a variable angle with the first frame, wherein the fixing part is attached to the first frame and the second frame, and the variable part is attached to the first frame and the second frame. It may be located between the second frames.
  • the mobile terminal of the present invention can maintain a state in which the display unit is stably attached by providing adhesive tapes having different properties depending on the position of the flexible display unit.
  • 1 is a block diagram illustrating a mobile terminal.
  • FIG. 2 is a front view of a first state and a second state of a mobile terminal according to an embodiment
  • FIG. 3 is a rear view of a first state and a second state of a mobile terminal according to an embodiment
  • FIGS. 4 and 5 are exploded perspective views of a mobile terminal according to an embodiment.
  • FIG. 6 is a side view of the mobile terminal viewed from the third direction.
  • FIG. 7 is a diagram illustrating a driving unit of a mobile terminal according to an embodiment of the mobile terminal.
  • FIG. 8 is a cross-sectional view taken along lines A-A and B-B of FIG. 2 .
  • FIG. 9 is a diagram illustrating a display unit and a rolling hinge according to an embodiment of a mobile terminal.
  • FIG. 10 is a view showing a rolling seat of a rolling hinge.
  • FIG. 11 is a view illustrating a connection part of an adhesive tape for bonding a rolling hinge of a mobile terminal to a display unit.
  • FIG. 12 is an exploded view of the display unit for explaining the positions of the adhesive tape and the gap of FIG. 11 .
  • FIG. 13 is a view showing another embodiment of the connecting portion of the adhesive tape of the present invention.
  • FIG 14 and 15 are views showing another embodiment of the connecting portion of the adhesive tape of the present invention.
  • 16 is a diagram illustrating another embodiment of a mobile terminal and another embodiment of an adhesive tape.
  • 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 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 an external server. It may include one or more modules that enable wireless communication between them. Also, 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 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.
  • Mobile communication module 112 the 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 and receives radio signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network constructed according to (Long Term Evolution-Advanced).
  • 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
  • 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 technology 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. Short-distance communication may be supported by using at least one of (Near Field Communication), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies.
  • 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 a network in which another mobile terminal 100 or an external server is located can support wireless communication.
  • the local area network may be local area networks (Wireless Personal Area Networks).
  • 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 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 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 shooting 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 (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, graphic (graphic), text (text), icon (icon), video (video) or these can be made by a combination of
  • 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 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 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. For example, the haptic module 153 may synthesize and output different vibrations or output them sequentially.
  • 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 interface unit 160 serves as a passage with various types of external devices connected to the mobile terminal 100 .
  • Such an 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 I/O (Input/Output) port, a video I/O (Input/Output) 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 (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 control unit 180 to supply power to each component included in the mobile terminal 100 .
  • the power supply unit 190 includes a battery 191, which may be a built-in battery or a replaceable battery.
  • At least some of the respective components may operate in cooperation with each other in order to implement an operation, control, or control method of a mobile terminal according to various embodiments 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 .
  • FIG. 2 is a front view of a first state and a second state according to an embodiment of the mobile terminal
  • FIG. 3 is a rear view of the first state and the second state according to an embodiment of the mobile terminal
  • 2 (a) and 3 (a) are views showing a first state in which the mobile terminal is reduced
  • FIGS. 2 (b) and 3 (b) are a second state in which the mobile terminal is enlarged. is a diagram showing
  • the mobile terminal 100 in the first state is in a reduced state, and has a smaller size than the mobile terminal 100 in the second state.
  • the size of the display 151 positioned on the front of the mobile terminal 100 is also smaller than that in the second state.
  • the mobile terminal 100 in the first state may be converted to the second state by expanding in the first direction D1.
  • the size of the mobile terminal 100 and the size of the display unit 151 located on the front are larger than those of the first state, and the As shown, the size of the display unit 151 located on the rear surface is reduced. That is, a portion of the display unit 151 positioned on the rear surface of the mobile terminal 151 in the first state moves to the front surface of the mobile terminal 100 in the second state.
  • the direction in which the mobile terminal 100 and its display 151 are extended or enlarged is the first direction D1, and the second state is contracted to be switched from the second state to the first state (contact or retract).
  • the reduced direction is referred to as a second direction D2
  • a direction perpendicular to the first and second directions D1 and D2 is referred to as a third direction.
  • the first and second directions are horizontal directions and the third direction is described with reference to the vertical direction. However, depending on the arrangement of the mobile terminal 100 , the first and second directions may be vertical directions, and the third direction is horizontal. direction can be
  • the display unit may use the flexible display unit 151 that is bent so that the position of the display unit can be changed.
  • the flexible display unit 151 is a display unit that can maintain a flat state like a conventional flat panel display, and can be bent, bent, folded, twisted, or curled like paper. It refers to a durable display that is manufactured on a thin and flexible substrate and is not easily broken. It can be bent in a specific direction like paper, and the flexible display unit of the present invention can be arranged so that the curvature can change in the first direction.
  • 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.
  • the display area of the flexible display unit 151 becomes flat.
  • the display area may be a curved surface.
  • the information displayed in the deformed state may be visual information output on the curved surface.
  • 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 151 may be combined with a touch sensor to implement a flexible touch screen.
  • 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 basic state but also in the deformed state.
  • the touch sensor senses a touch (or touch input) applied to the touch screen by using at least one of various touch methods such as a resistive method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method.
  • various touch methods such as a resistive method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method.
  • 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 touch, capacitance at the time of touch, and the like where a touch object applying a touch on the touch screen is touched on the touch sensor.
  • the mobile terminal 100 may be provided with a deformation detection means for detecting the deformation of the flexible display unit 151 .
  • a deformation detection means may be included in the sensing unit 140 (refer to FIG. 1).
  • the deformation detecting means may be provided in the flexible display unit 151 or the case (first and second frames 101 and 102 to be described later) to detect information related to deformation of the flexible display unit 151 .
  • the information related to the deformation may be a direction in which the flexible display unit 151 is deformed, a deformed degree, a deformed position, a deformed time, and an acceleration at which the deformed flexible display unit 151 is restored.
  • the flexible display unit 151 may be a variety of detectable information due to the bending.
  • the controller 180 changes information displayed on the flexible display unit 151 based on the information related to the deformation of the flexible display unit 151 sensed by the deformation detecting means, or the mobile terminal 100. It is possible to generate a control signal to control the function of
  • the deformation of the flexible display unit 151 may vary depending on the positions of the first frame 101 and the second frame 102 . As shown in FIG. 2 , since the bent position of the flexible display unit 151 is determined according to the positions of the first frame and the second frame, the first frame 101 and the second frame instead of the deformation detecting means of the flexible display unit 151 are 2 Depending on the position of the frame 102 , the bending deformation position and the front area of the flexible display unit 151 may be calculated.
  • the change of state (first or second state) of the flexible display unit 151 that is, the size change of the display unit 151 in the front and rear of the mobile terminal 100 according to the size change of the mobile terminal 100, It may be performed manually by a force applied by a user, but is not limited to such a manual method.
  • the mobile terminal 100 or the flexible display unit 151 may be transformed into a second state by a command from a user or an application without an external force applied by the user.
  • the mobile terminal 100 may include a driving unit 200 to be described later.
  • the flexible display unit 151 of the present invention is bent 180 degrees while being wrapped around the side of the mobile terminal 100 in the first direction. Accordingly, based on the side of the mobile terminal 100 , a part of the flexible display unit 151 is disposed on the front side of the mobile terminal 100 , and the other part of the flexible display unit 151 is located on the rear surface of the mobile terminal 100 . are placed
  • the flexible display unit 151 located at the front is referred to as a front side
  • the flexible display unit 151 located at the rear side is referred to as a back side.
  • the mobile terminal may be expanded in a first direction or contracted in a second direction opposite to the first direction. In this case, the area of the flexible display unit 151 located on the front changes. That is, the sizes of the front part and the rear part may vary according to a change in the state of the mobile terminal.
  • a part of the flexible display unit 151 located on the front of the mobile terminal 100 may be fixed to the front of the first frame 101 so as not to move, and the other part of the flexible display unit 151 located on the rear side of the mobile terminal 100 is It may be provided movably on the rear surface.
  • the flexible display unit 151 may be wound or unwound from the side of the mobile terminal in the first direction, and accordingly, by moving a portion disposed on the rear surface of the mobile terminal 100, the flexible display unit 151 The size of the area disposed in front of the mobile terminal 100 may be adjusted. Since the area of the flexible display unit 151 is fixed and it is composed of one continuous body, when the area of the front portion increases, the area of the rear portion decreases.
  • Such a display unit 151 may be wound in a second frame 102 that is relatively movable to a first frame 101 to be described later, precisely on the side of the second frame 102 in the first direction, In order to adjust the area of the display unit 151 on the front side of the mobile terminal 100, it is wound around the second frame 102 according to the moving direction of the second frame 102 and withdrawn from the second frame 102. or pulled out) or inserted or pushed into it. This operation will be described in more detail below along with other related components of the mobile terminal 100 .
  • the antenna is provided in the case or housing of the mobile terminal 100, but the portion where the antenna is installed in the case or housing is limited by the flexible display unit 151 that covers the front and rear surfaces of the mobile terminal 100. can be For this reason, an antenna may be implemented on the flexible display unit 151 .
  • Antenna on display (AOD) is a type of antenna in which a patterned electrode layer and a dielectric layer are layered to form a transparent film.
  • the built-in display antenna can be implemented thinner than the laser Direct Structuring (LDS) technology implemented by the existing copper nickel plating method, so it has the advantage of not being exposed to the outside with little effect on the thickness. Also, the built-in display antenna may directly transmit/receive a signal from the display unit 151 . Therefore, as in the present invention, in the mobile terminal 100 in which the display unit 151 is located on both sides, a built-in display antenna can be used.
  • LDS laser Direct Structuring
  • FIG. 4 and 5 are exploded perspective views of a mobile terminal according to an embodiment, in which FIG. 3 is an exploded perspective view seen from the front direction, and FIG. 5 is an exploded perspective view seen from the rear direction.
  • the mobile terminal 100 of the present invention includes frames 101 and 102 on which components are mounted, and the frames 101 and 102 of the present invention can be changed in size in the first direction as shown in FIG. 2 . . At least one or more frames 101 and 102 may move relatively and have different sizes in the first direction.
  • the frames 101 and 102 have electronic components mounted therein and the flexible display unit 151 positioned outside.
  • the flexible display unit 151 can be coupled to cover the front and rear surfaces of the frames 101 and 102 .
  • the frame may include a first frame 101 and a second frame 102 moving in a first direction with respect to the first frame 101 .
  • the first frame 101 and the second frame 102 include a front portion, a rear portion and a side portion, and are coupled to each other.
  • the first frame 101 corresponds to the main body of the mobile terminal 100 , and may form a space for accommodating various parts between the first front part 1011 and the first rear part 1012 .
  • the first frame 101 may accommodate the second frame 102 movably coupled to the first frame 101 in such a space.
  • the first frame 101 is disposed in front of the mobile terminal 100 as well as shown in Figs. 1011) and a first rear portion 1012 disposed at the rear of the mobile terminal and on which various components are mounted.
  • the first front portion 1011 and the first rear portion 1012 may be spaced apart from each other at a predetermined distance to form a predetermined space, and the first side portion (1013) can be connected to each other.
  • the first side portion 1013 may be formed integrally with the first rear portion 1012 or the first front portion 1011 .
  • a camera 121 , a sound output unit 152 , an input/output terminal 161 , a control unit 180 , and a power supply unit 190 may be accommodated as parts of the mobile terminal 100 in the space within the first frame 101 .
  • the control unit 180 may be a circuit board 181 including a processor and an electronic circuit for controlling the operation of the mobile terminal
  • the power supply unit 190 may be the battery 191 and related components.
  • the driving unit 200 for controlling the sliding movement of the second frame 102 to be described later may also be accommodated in the first frame 101 .
  • the display unit 151 has a continuous body and may be disposed on both the front and rear surfaces of the mobile terminal 100 while being wound in the mobile terminal 100 .
  • the display unit 151 may include a front portion positioned on the front of the mobile terminal 100 , a rear portion positioned on the rear surface, and a side portion positioned between the front portion and the rear portion and surrounding the side surface of the mobile terminal.
  • the front part and the back part may be flat, and the side part may form a curved surface of the display unit 151 .
  • the flexible display unit 151 When the flexible display unit 151 is bent at an angle, the flexible display unit 151 may be damaged, and the side portion may be configured to be bent with a predetermined curvature.
  • the display unit 151 may be divided into a fixed unit and a variable unit.
  • the fixed part means a part fixed to the frame. Since it is fixed to the frame, the degree of bending does not change and it is characterized in that it maintains a constant shape.
  • the variable part means a part in which the angle of the curved part is variable or the position of the curved part is changed.
  • the variable part whose bending position or angle is changed needs a structure for supporting the rear surface of the variable part in response to the change.
  • the fixing unit is coupled to the first frame of the display unit and is always positioned at the front side to constitute a part of the front unit.
  • the variable part includes a side part positioned in the side direction of the mobile terminal, and the position of the side part changes according to the position of the second frame.
  • the area of the area located on the front side and the area located on the back side are different from the side part. That is, a part of the variable part may be a front part and a part of the variable part may be a rear part according to the first state and the second state.
  • the variable part is positioned in the first direction with respect to the fixed parts 151a and 151b with respect to the mobile terminal, and the end of the variable part is bent in the rear direction of the mobile terminal and slides on the rear surface of the second frame.
  • the end of the variable part of the display unit is coupled to a slide frame that guides the slide movement on the rear surface of the second frame, and the slide frame moves on the second frame in the first direction at the same time when the second frame moves in the first direction.
  • the moving distance of the slide frame moves twice that of the second frame for the first frame.
  • the first rear portion 1012 of the mobile terminal 100 has an exposed rear portion 1015 exposed to the outside without the display unit 151 covering it even in the first state.
  • the first rear portion 1012 excluding the exposed rear portion 1015 is covered by the display unit 151 in the first state as shown in FIG. 3A , and as shown in FIG. 3B , In the second state, it may be exposed in the rear direction.
  • the display unit is provided only on the front surface of the terminal. Accordingly, the main camera is disposed on the rear surface of the terminal in order to photograph the object on the opposite side while looking through the user's display unit 151 . On the other hand, an auxiliary camera is additionally required on the front of the terminal in order to take a picture while watching the user through the display unit.
  • the display unit 151 is located on both the front and rear surfaces thereof. Therefore, when photographing the user himself, the display unit on the same side as the camera 121 , that is, the rear side of the display unit 151 may be used, and when photographing an object opposite to the user, the display on the opposite side to the camera 121 .
  • the front portion of the portion 151 may be used.
  • the mobile terminal 100 may use one camera 121 to photograph an object located on the opposite side of the user or may photograph the user.
  • the camera may include a plurality of cameras having different angles of view, such as wide-angle, ultra-wide, and telephoto.
  • a proximity sensor sound output unit may be positioned on the exposed rear part 1015 , and an antenna 116 may be installed. It can be attached using the exposed deco 1015 to protect the camera or sensor of the exposed rear portion 1015 and to consider the exterior design aspect.
  • the exposed decor 1015 may have a predetermined pattern or color in consideration of the design aspect without exposing the internal parts of the exposed decoration 1015 and making the part corresponding to the camera 121 or the sensor 140 transparent.
  • the first side portion 1013 may extend along the edges of the first front portion 1011 and the first rear portion 1012 so as to surround the circumference of the first frame 101 , and may enhance the appearance of the mobile terminal 100 . can be formed However, as mentioned above, since the second frame 102 is accommodated in and movably coupled to the first frame 101 , the relative movement of this second frame 102 with respect to the first frame 101 . A part of the first frame 101 needs to be opened in order to allow 2 , as an example, since the second frame 102 is movably coupled in the first direction of the first frame 101 , the first side portion 1013 is disposed on the side surface in the first direction. It is not formed and can open it.
  • an interface unit 160 for connecting a power port or an ear jack or a user input unit 120 such as a volume button may be disposed.
  • the first side portion 1013 may serve as an antenna.
  • the second frame 102 may include a second front portion 1021 disposed in front of the mobile terminal 100 and a second rear portion 1022 disposed in the rear of the mobile terminal 100 .
  • the second front portion 1021 and the second rear portion 1022 may be formed of a substantially flat plate-shaped member.
  • the second frame 102 also accommodates various parts, and should not interfere with the parts accommodated in the first frame 101 during movement. Accordingly, the second front portion 1021 and the second rear portion 1022 may be coupled to each other in a spaced apart state to form a predetermined space, and may have a shape that does not interfere with the components in the first frame 101 . have.
  • FIG. 6 is a side view of the mobile terminal 100 viewed from the third direction, showing a first side portion 1013 of the first frame 101 and a second side portion 1023 of the second frame 102 .
  • the end of the second frame 102 in the first direction is not exposed to the outside because the flexible display unit 151 is located, and the end of the second frame 102 in the second direction should be opened so as not to interfere with the first frame 101 .
  • the second side portion 1023 of the second frame 102 positioned in the third direction (meaning the upper or lower direction in the drawing, or may include both the upper and lower sides) is the second side portion 1023 of the first frame in the first state. It overlaps with the first side 1013 and is not exposed to the outside, but in the second state, since the second frame 102 is drawn out, it may be exposed to the outside.
  • the display unit 151 may be bent 180 degrees while being wound in the second frame 102 so as to be disposed on both the front and rear surfaces of the mobile terminal 100 .
  • the second frame 102 may include a roller 210 rotatably disposed therein.
  • the roller 210 may be disposed at any position inside the second frame 102 .
  • the display 151 needs to be spread flat on the front and back sides of the mobile terminal 100 in order to provide a user with a good quality screen. do.
  • a roller 210 may be disposed at the first directional end of the second frame 102 .
  • the roller 210 may extend in the second direction and may be rotatably coupled to the second frame 102 .
  • the display unit 151 may be wound around the roller 210 while being gently bent with a predetermined curvature.
  • the flexible display unit 151 may include a first surface on which an image is output and exposed to the outside, and an inner surface facing the frame opposite to the first surface.
  • the roller 210 may be installed to freely rotate on the second frame 102 while in contact with the inner surface of the display unit 151 . Accordingly, the roller 210 may actually move the display unit 151 in a lateral direction of the mobile terminal 100 , that is, in a direction perpendicular to the longitudinal direction.
  • the display unit 151 moves in different directions (that is, the first direction D1 or In the second direction D2, it moves to the front or rear side of the mobile terminal 100 relative to the second frame 102, and the roller 210 may guide this movement while rotating.
  • roller 210 is disposed adjacent to the end of the second frame 102 in the first direction, and in order to prevent damage to the display unit 151 wound around the roller 210 , the first of the second frame 102 . and a side frame 1024 disposed at the directional end.
  • the side frame 1024 may extend long in the longitudinal direction (third direction) of the second frame 102 to cover the side portion in the first direction, and accordingly, the roller 210 and the display unit 151 wound thereon. can protect
  • the side frame 1024 together with the first side portion 1013 of the first frame 101 may substantially form the appearance of the mobile terminal 100 .
  • the second frame 102 may be omitted in the second direction.
  • the second frame 102 does not interfere with the first frame 101, the first frame 101, precisely its first front part. 1011 , may overlap the first rear portion 1012 . More specifically, as described above, the display unit 151 may be coupled and supported by the first front portion 1011 of the first frame 101 , and thus the second frame 102 . There is no need to be additionally supported by the second front portion 1021 of the Rather, when the second front part 1021 is interposed between the first front part 1011 and the display part 151 , the display part 151 may be moved by friction with the repeatedly moving second front part 1021 . It may be deformed or damaged.
  • the second front portion 1021 may be disposed below the first front portion 1011 or may be inserted between the first front portions 1011 composed of two sheets.
  • the second rear portion 1022 of the second frame 102 may be disposed in the rear direction of the first rear portion 1012 of the first frame 101 . That is, the front surface of the second rear portion 1022 may face the rear surface of the first rear portion 1012 .
  • the rear surface of the first rear portion 1012 may contact the front surface of the second rear portion 1022 .
  • the second rear portion 1022 may be exposed to the outside of the first frame, more precisely, the first rear portion 1012 , and may be coupled to the display unit 151 .
  • the second frame 102 can expand and contract the size of the mobile terminal 100 itself, in particular, the front of the mobile terminal 100 by expansion and contraction in the first and second directions D1 and D2.
  • the display unit 151 has to move as much as the expanded or reduced front surface in order to obtain the intended first and second states.
  • the display unit 151 may be movably coupled to the second frame 102 .
  • the display unit 151 includes a second region ( 151b), located between the first area 151a and the second area 151b, and wrapped around the roller 210, and moved to the front or rear according to the change of state of the mobile terminal 100 It may include three regions 151c.
  • the slide frame 103 may be made of a plate-shaped member extending long in the longitudinal direction (third direction) of the mobile terminal 100,
  • It may be movably coupled to the second rear part 1022 in the first and second directions D1 and D2.
  • the 1-3 th regions 151a , 151b , and 151c may be connected to each other and form a continuous body of the display unit 151 .
  • the first region 151a is formed by the mobile terminal. It is fixed to the front surface of 100 and the second area 151b may be provided to be movable on the rear surface of the mobile terminal.
  • the configuration of the display unit 151 will be described in more detail below.
  • the first region 151a may be disposed on the front surface of the mobile terminal 100 , more specifically, on the front surface of the first front part 1011 of the first frame 101 .
  • the first region 151a is fixed to the front surface of the first frame 101 , that is, the first front part 1011 , so that it does not move even when the second frame 102 is moved. can be exposed to the front.
  • the third region 151c is adjacent to the first region 151a in the direction of the second end 151e , and may extend into the second frame 102 to be wound around the roller 210 .
  • the third region 151c may extend out from the second frame 102 again and partially cover the second frame 102 , that is, the rear surface of the second rear portion 1022 .
  • the second frame 102 that is, the second rear portion 1022 is adjacent to the first frame 101, that is, the first rear portion 1012 and together form the rear case of the mobile terminal 100, It may be described that the third region 151c is also disposed on the rear surface of the first frame 101 .
  • the second region 151b is adjacent to the third region 151c, and may be disposed on the rear surface of the mobile terminal 100 , more specifically, on the rear surface of the second rear part 1022 of the second frame 102 . have.
  • the second region 151b may be coupled to the slide frame 103 without being directly coupled to the second frame 102 .
  • the first region 151a is disposed on the front side of the mobile terminal 100 and is always exposed to the front regardless of the movement of the second frame 102
  • the second region 151b is the mobile terminal 100 . It is disposed on the rear surface of the second frame 102, regardless of the movement can be always exposed to the rear surface.
  • the third region 151c is disposed between the first and second regions 151a and 151b, and the front or rear surface of the mobile terminal 100 according to the moving directions D1 and D2 of the second frame 102 . may be optionally placed on the
  • the first rear portion 1012 of the first frame 101 is disposed in the display unit 151 in the first state.
  • the second state in which the portion covered by the second and third regions 151b and 151c and the second rear portion 1022 of the Since the rear part 1022 also moves in the first direction D1 , it may be exposed to the outside of the mobile terminal 100 .
  • the second front portion 1021 of the second frame 102 is hidden by the first front portion 1011 of the first frame 101 in the first state, but in the second state, the first frame 101
  • the third area 151c of the display unit 151 which is moved from the mobile terminal 100 and disposed in front of the mobile terminal 100 may be supported.
  • the second front portion 1021 is further provided with a separator 1017 positioned in the rear direction of the second front portion 1021 so as not to affect the internal components during the slide movement to be fastened with the first front portion 1011.
  • the second front part 1021 may move between the first front part 1011 and the separation plate 1017 according to the sliding movement of the second frame.
  • the third region 151c may be bent by being wound around the roller 210 in the second frame 102 .
  • the third region 151c may extend from the second frame 102 to the front of the mobile terminal 100 while being wound around the roller 210 in either direction.
  • the third region 151c may be contracted from the front side of the mobile terminal 100 to the second frame 102 while being wound around the roller 210 in the opposite direction, and at the same time. It is possible to return to the rear surface of the mobile terminal 100 from the second frame 102 .
  • the deformable portion of the flexible display unit 151 that is, the portion wound around the roller 210 may vary according to the movement of the first and second states of the mobile terminal 100 , that is, the second frame 102 . . Accordingly, the mobile terminal 100 of the present invention can significantly reduce deformation and fatigue repeatedly applied to a specific portion of the display unit 151, thereby preventing the display unit 151 from being damaged.
  • the overall operation of the mobile terminal 100 will be described as follows.
  • state change may be performed manually by a user, and the operation of the mobile terminal 100 during such manual state change will be described.
  • the operations of the 1-3 th frames 101-103 and the display unit 151 described below are performed when a power source other than the user's power is used, for example, when the driving unit 200 to be described later is applied. can be performed in the same way.
  • a rear cover 1025 may be further provided on the rear surface of the second rear portion 1022 so that the rear portion of the display portion located on the rear surface of the mobile terminal 100 is not exposed to the outside. If a transparent material is used, the rear surface of the mobile terminal in the first state can also be used for the rear cover 1025 , and when an opaque material is used, the movement of the slide frame 103 can be covered so as not to be exposed. That is, the second and third regions of the slide frame 103 and the display unit 151 move in the first and second directions between the spaced space between the second rear part 1022 and the rear cover 1025 . can
  • the mobile terminal 100 of the present invention is a mobile terminal 100 in such a way that the user manually pulls the second frame 102 with respect to the first frame 101 or pushes it in the second direction.
  • the motor 201 can be moved to stably move the second frame 102 without distortion. It may further include a driving unit 200 to be used.
  • the motor 201 may use a motor 201 that provides a rotational force as shown in FIG. 7 , or a linear motor 201 that moves in a straight line.
  • the motor 201 for providing a rotational force must have a larger diameter, but in order to provide a driving force of a predetermined size or more without increasing the thickness in the limited space of the mobile terminal 100.
  • two motors 201 can be used. If the moving speed of the second frame 102 is too fast, there is a risk of damage or malfunction, so a planetary gear for decelerating the speed of the motor 201 to move at a stable speed may be further included.
  • the planetary gear 202 serves to amplify or attenuate the number of rotations of the motor 201 using a plurality of disk gears having different numbers of teeth.
  • the motor 201 may be fixed to the first frame 101 as shown in (a) of FIG. 7, and as shown in (b) of FIG. Even if the mobile terminal 100 is moved and switched to the second state, the position is fixed.
  • a rack and pinion gear that converts the rotational force of the motor 201 into a linear motion may be used.
  • the pinion gear receiving the rotational force of the motor 201 may be arranged to mesh with the rack gear 205 composed of teeth continuously arranged in the first direction.
  • the pinion gear may be fixed to the first frame 101 together with the motor 201 , and the rack gear 205 may be located in the second frame 102 .
  • the rack gear 205 may be disposed on the first frame 101 and the motor 201 and the pinion gear may be disposed on the second frame 102 .
  • the second frame 102 can maintain the first state and the second state, but when a large external force is applied, the pinion gear rotates while the second frame ( 102) may be out of position.
  • the mobile terminal 100 may further include a stopper (not shown) for fixing the position between the second frame 102 or the rack gear 205 and the first frame 101 so that the mobile terminal 100 is fixed in the first state or the second state.
  • a stopper (not shown) for fixing the position between the second frame 102 or the rack gear 205 and the first frame 101 so that the mobile terminal 100 is fixed in the first state or the second state.
  • the stopper is released when a current flows through the motor 201 to allow movement of the second frame 102, and when the motor 201 does not rotate because power is not applied to the motor 201, the second frame ( 102) and the second frame 102 may be fastened to fix the position.
  • the second frame 102 may further include a linear guide 230 because, depending on the position of the asymmetrical driving unit 200 , the movement speed of the upper end and the lower end is different during the movement of the second frame 102 , which may cause a problem in that it is twisted.
  • the linear guide 230 may be disposed at both ends of the mobile terminal 100 in the third direction, ie, upper and lower, in order to supplement the function of one driving unit 200 biased to one side in the third direction.
  • the linear guide 230 may include a guide rail 231 extending in the first direction and a guide block 232 moving along the guide rail 231 .
  • the guide rail 231 may be disposed on the first frame 101 and the guide block 232 may be disposed on the second frame 102 , and vice versa.
  • the guide rails 231 are disposed on the second frame 102 to cover upper and lower sides of the extended portion of the second frame 102 in the second state.
  • the guide block 232 and the guide rail 231 may be slide-fastened, but for convenience of fastening.
  • the guide block 232 is first fixed to the first frame 101, and then the second frame 102 and the guide rail 231 are coupled.
  • a guide groove into which the guide rail 231 is inserted may be formed, and conversely, a rail groove into which a part of the guide block 232 is inserted may be formed in the guide rail 231 .
  • the fastening portion of the guide rail 231 and the guide block 232 may be moved in the first direction or the second direction without being deviated in the thickness direction of the mobile terminal 100 as unevenness is formed.
  • a member with high wear resistance, low friction resistance, and self-lubrication such as a bearing or polyoxymethylene (POM), is added inside the guide groove. can do.
  • FIG. 8 is a cross-sectional view taken along lines A-A and B-B of FIG. 2 .
  • the third region 151c located in the rear direction moves in the front direction and the second frame 102 moves in the front direction.
  • 3 A structure for supporting the rear surface of the region 151c is required.
  • the second front portion 1021 positioned on the front of the second frame 102 may be positioned on the rear surface of the third region 151c in the second state, but in the first state, the first Since it overlaps with the front part 1011, the first front part 1011 and the second front part 1021 form a step difference.
  • a boundary is generated between the first area 151a and the third area 151c of the flexible display unit 151 due to the step difference between the first front portion 1011 and the second front portion 1021 .
  • the rolling hinge 104 may be used as a support structure to fill a space between the second front part 1021 and the third region 151c of the flexible display unit 151 .
  • the rolling hinge 104 may be positioned on the rear surface of the flexible display unit 151 and may have a thickness corresponding to the spaced apart space between the second front unit 1021 and the flexible display unit 151 in the second state. As shown in (a) of FIG. 8 , in the first state, the rolling hinge 104 is wound around the roller 210 and is located in the side and rear directions of the mobile terminal 100 , and the second rear of the second frame 102 . The flexible display unit 151 and the rolling hinge 104 may be positioned between the unit and the rear cover 1025 that covers the rear surface of the display unit 151 . As shown in (b) of FIG. 8 , when the second state is changed, the rolling hinge 104 moves to the front, and the rolling hinge 104 may be located in the front portion of the second frame 102 .
  • the rolling hinge 104 Since the third region 151c of the display unit 151 in which the rolling hinge 104 is located is a portion in which bending deformation occurs when the first state is changed to the second state, the rolling hinge 104 also includes the third region 151c. It can be modified corresponding to the modification of . At the same time, the rolling hinge 104 must have a predetermined rigidity to maintain a flat state when the flexible display unit 151 is positioned on the front or rear surface. That is, the rolling hinge 104 needs a structure that maintains a flat state in the third direction and is bendable in the first direction.
  • FIG 9 is a view showing a display unit 151 and a rolling hinge 104 according to an embodiment of the mobile terminal 100, wherein the rolling hinge 104 includes a plurality of support bars 1041 extending in a third direction. may include.
  • the plurality of support bars 1041 are arranged side by side in the first direction, are spaced apart from each other by a predetermined distance, and are wound around the roller 210 to avoid interference between the support bars 1041 even when the flexible display unit 151 is bent.
  • the support bar 1041 may be implemented as an injection-molded material having a predetermined thickness for rigidity, and may include a material such as SUS or ferrosilicon (fe-Si).
  • the plurality of support bars 1041 can be directly attached to the back surface of the display unit 151, it takes a long time and causes many defects, resulting in poor productivity. In addition, when the display unit 151 is directly processed, there is a high possibility that the display unit 151 may be damaged. Accordingly, it may further include a rolling seat 1045 for fixing the plurality of support bars 1041 .
  • the rolling sheet 1045 may include a metal material, and a material having superelasticity that can be bent and deformed and can maintain a flat state again after bending deformation can be used. For example, a superelastic metal sheet such as a thin STS sheet of 0.05 mm or less can be used.
  • An adhesive tape 1046 may be attached to both sides of the rolling sheet 1045 in order to couple the rolling sheet 1045 and the support bar 1041 and also to couple the back surface of the display unit 151 and the rolling sheet 1045. have.
  • the rolling sheet 1045 itself may also form a kerf pattern in which a plurality of grooves extending in the third direction are formed in the first direction.
  • the groove of the cuff pattern may be formed between the plurality of support bars 1041 , and is preferably formed on the surface to which the support bars 1041 of the rolling sheet 1045 are coupled.
  • the cuff pattern may be formed in a wedge shape in which the surface portion of the rolling sheet 1045 has a large size and gradually becomes narrower.
  • a material having elasticity such as silicone, is disposed between the support bars 1041 to couple the adjacent support bars 1041 , and the angle between the support bars 1041 can be varied.
  • the elastic connection part may be bent at a position corresponding to the roller 210 , and if it is located on the front or rear surface, the support bar 1041 may be unfolded to form a plane.
  • the support bar 1041 may have a flat surface corresponding to the rear surface of the display unit 151 .
  • it may be configured in a form having a predetermined curvature, and the curved support bar 1041 is the roller 210 when the rolling hinge 104 is wound around the roller 210 . It can adhere to curved surfaces.
  • one surface of the support bar 1041 in contact with the display unit 151 may maintain a flat plane, and the other surface of the support bar 1041 may include a curved surface having a curvature corresponding to the curvature of the roller 210 .
  • the thickness of the support bar 1041 may be formed so that the ends in the first direction and the second direction are thick and the middle is the thinnest.
  • the rolling hinge 104 is disposed at a position corresponding to the third region 151c and is wound around the roller 210 so as to span the front and rear surfaces. In the front direction, it is connected to the first front portion 1011 of the first frame 101 , and in the rear direction, it is connected to the slide frame 103 .
  • the slide frame 103 positioned at , and the surface in contact with the display unit 151 of the rolling hinge 104 positioned on the rear surface of the third region 151c may have the same height.
  • the thickness of the rolling hinge 104 has a thickness corresponding to the thickness of the slide frame 103 .
  • the rolling sheet 10 is a view showing the rolling seat 1045 of the rolling hinge 104.
  • the rolling sheet 1045 may use a solid thin metal plate as shown in FIG. 9, but the curvature radius of the display unit 151 in the bent portion and the curvature radius of the rolling sheet 1045 located inside the rolling sheet 1045 are different. Since there is, a sliding phenomenon may occur between the display unit 151 and the rolling seat 1045 during bending deformation.
  • the pushing phenomenon between these two members increases the size of the force required for bending deformation of the flexible display unit 151, and the display unit 151 has a problem in durability of the display unit 151 due to the application of tensile force in the plane direction. may occur. In addition, a problem occurs in that the bonding force between the display unit 151 and the rolling sheet 1045 is weakened.
  • a kerf pattern may be formed on the rolling sheet 1045 as shown in FIG. 10 .
  • the cuff pattern is formed by forming a long slit 1045s in the third direction on the rolling sheet 1045, and it is possible to offset the sliding phenomenon due to the difference in the radius of curvature with the display unit 151, thereby reducing the repulsive force during bending deformation. .
  • a plurality of slits 1045s of the cuff pattern formed on the rolling sheet 1045 may be formed to have a length shorter than the length of the rolling sheet 1045 in the third direction, and may be disposed to be spaced apart in the first direction as well.
  • the slits 1045s spaced apart in the first direction so that there are no continuously connected portions without being partitioned into the slits 1045s in the first direction may be displaced in the third direction as shown in (b).
  • the spacing of the slits 1045s in the first direction may be disposed to correspond to the spacing of the support bars 1041 . That is, if the slit 1045s of the rolling seat 1046 is formed between the support bars 1041 , it is possible to reduce the repulsive force during bending deformation of the rolling hinge 104 .
  • the flexible display unit 151 includes a display panel 1510 on which an image is output and a back plate 1515 for protecting and supporting the rear surface of the display panel 1510 , and is disposed between the display panel 1510 and the back plate 1515 . and an adhesive tape 1516 for adhesion of the .
  • the display panel 1510 may have a form in which a plurality of layered structures 1511 to 1514 are overlapped.
  • the flexible display unit 151 includes parts 151f and 151c fixed to the frame 101 and a variable part 151v whose shape or position changes according to the movement of the second frame 102 .
  • the attachment force of the fixing parts 151f and 151c is the most important so that they can be stably attached to the frame 101 .
  • the variable unit 151v is bent according to the shape of the display unit 151 and is pushed due to a difference in the radius of curvature between the display panel 1510 and the back plate 1515 . It is important to have sufficient elasticity to cancel the phenomenon.
  • the adhesive force of the curved portion positioned at the end of the display unit 151 coupled to the frame 101 in the second direction is weak, there is a problem in that the display unit 151 is separated from the curved surface of the frame 101 .
  • Adhesive force and elasticity are opposite to each other, and when the adhesive tape 1516 having excellent adhesion is used, elasticity is insufficient, and thus, there is a problem in that a repulsive force is applied to the flexural deformation when the display unit 151 is flexibly deformed. Conversely, when the adhesive tape 1516 having excellent elasticity is used, the adhesive force between the frame 101 and the display unit 151 is weak, so that the in-plane force due to the bending deformation of the third region is transmitted, so that the display unit 151 and the frame 101) This can be separated. In particular, since the curved portion requires a strong adhesive force to offset the force of the display unit 151 to be unfolded, there is a problem in durability to couple the display unit 151 and the frame 101 with the elastic adhesive tape 1516. .
  • the flexible display unit 151 is coupled to the display panel 1510 and the back plate 1515 by using the first tape 1516a having excellent adhesion and the second tape 1516b having excellent elasticity.
  • the second tape 1516b may use a material different from that of the first tape 1516a to increase elasticity, and a cuff pattern is put in the second tape 1516b to reduce the repulsive force during bending deformation, and the display unit 151 and the rolling sheet It is possible to offset the pushing phenomenon between them.
  • FIG. 12 is a diagram illustrating an example of the arrangement of the first tape 1516a and the second tape 1516b.
  • the first tape 1516a is positioned on the fixed parts 151f and 151c of the display unit 151
  • the second tape 1516b is positioned on the variable part 151v of the display unit 151 .
  • the area of the first tape 1516a and the area of the second tape 1516b may coincide with the areas of the fixing parts 151f and 151c and the variable part 151v as shown in FIG.
  • the second tape 1516b may be positioned on a part of the fixing part 151f. That is, the area of the first tape 1516a and the area of the second tape 1516b do not necessarily coincide with the areas of the fixed portions 151f and 151c and the variable portion 151v.
  • the boundary 151g between the first tape 1516a and the second tape 1516b may be located between the variable portion 151v and the fixed portions 151f and 151c as shown in FIG. It may be located on the flat part 151f of the fixing part as shown in FIG. 12B .
  • variable portion 151v of the display unit 151 has a change in curvature, it has high elasticity, which is easy to bend and deform according to the change in curvature of the display unit 151 to attach the display panel 1510 and the backplate 1515 .
  • the second tape 1516b must be used. Since the fixing parts 151f and 151c do not change in shape, they do not need to have high elasticity, but the curved part 151c needs to use the first tape 1516a having a high adhesive force because the frame 101 is bent for the curved part of the display part ( 151c), the display panel 1510 and the backplate are not separated.
  • the adhesive tape 1516 used for the flat portion of the first frame 101 among the fixing parts 151f and 151c has a low risk of separation because the repulsive force of the display unit 151 is not large even though the adhesive force is small. Accordingly, the first tape 151a or the second tape 151b may be applied to the flat portion 151f. A portion of the flat portion 151f is formed by using the first tape 1516a and the remainder using the second tape 1516b, and the boundary 1516g between the first tape 1516a and the second tape 1516b is formed by the flat portion 151f. ) can be placed anywhere.
  • the two tapes 1516a and 1516b may be designed and attached to have a predetermined tolerance. If the tolerance is large, the gap 1516g may be exposed on the front surface of the display unit, so it is preferable to form it narrowly. However, if the gap 1516g is too small, the first tape 1516a and the second tape 1516b may overlap.
  • the boundary between the first tape 1516a and the second tape 1516b is a flat portion 151f to a curved portion ( 151c) or adjacent to the variable portion 151v in the planar portion 151f.
  • the first tape 1516a includes a first upper tape 1516a-2 and a first lower tape 1516a-1
  • the second tape 1516b includes a second upper tape 1516b- 2) and a second lower tape 1516b-1.
  • the sum of the thicknesses of the first upper tape 1516a-2 and the first lower tape 1516a-1 is equal to the sum of the thicknesses of the second upper tape 1516b-2 and the second lower tape 1516b-1. It can be configured so that the height between the first tape 1516a and the second tape 1516b is the same.
  • the sizes of the first upper tape 1516a-2 and the first lower tape 1516b-2 are not the same, and the first upper tape 1516a-2 extends further in the direction of the second tape 1516b to partially It overlaps with the second tape 1516b.
  • the second tape 1516b has a shorter length of the second lower tape 1516b-1 than the second upper tape 1516b-2, so that an end of the second upper tape 1516b-1 is attached to the first frame 101 in the second direction.
  • the first upper tape 1516a - 2 may overlap a portion of the second upper tape 1516b - 2 attached to the frame 101 , and does not overlap the second lower tape 1516b - 1 .
  • the thickness of the first tape 1516a thickness of the first upper tape 1516a-2 + the first lower tape 1516a) -1) and the thickness of the second tape 1516b (thickness of the second upper tape 1516b-2+thickness of the second lower tape 1516b-1) equal to the thickness of the first upper tape 1516a- 2
  • the thickness of the first lower tape 1516a-1 has a thickness corresponding to the thickness of the second upper tape 1516b-2.
  • the second upper tape 1516b-2 is bent at a portion positioned on the upper portion of the second lower tape 1516b-1 and a portion attached to the frame 101, so that the bent portion has a natural curved surface.
  • a second upper tape 1516b-2 having greater elasticity than the upper tape 1516a-2 may be disposed at an inclination, and the first upper tape 1516a-2 may be disposed on the second upper tape 1516b-2. have.
  • the first lower tape 1516a-1 may be attached first, and the second lower tape 1516b-1 may be attached at a predetermined distance apart. Thereafter, the second upper tape 1516b-2 overlaps the second lower tape 1516b-1 and protrudes in the second direction than the second lower tape 1516b-1, but overlaps the first lower tape 1516a-1. attach it so that it does not Accordingly, the gap between the first lower tape 1516a-1 and the second upper tape 1516b-2 corresponds to the gap 1516g between the first tape 1516a and the second tape 1516b shown in FIG. 11 described above. It may have a gap 1516g of a size g1 of
  • the first upper tape 1516a-2 is overlapped with the first lower tape 1516a-1, protrudes in the direction of the second tape 1516b, and is attached to the frame 101 of the second upper tape 1516b-2. It can be attached to overlap in parts. From the position where the second upper tape 1516b-2 and the second lower tape 1516b-1 overlap to the end of the first upper tape 1516a-2, the width g2 of the gap 1516g is larger than that of the above-described embodiment. can reduce as well. The thickness of the gap 1516g may also be reduced.
  • the thickness of the first upper tape 1516a-2 Configure the thickness of the first upper tape 1516a-2 to be thinner than the thickness of the first lower tape 1516a-1 (or the second upper tape 1516b-2) to reduce the thickness of the gap 1516g,
  • the thickness of the first upper tape 1516a - 2 is 50% or less of the thickness of the second upper tape 1516b - 2 , the gap 1516g is not exposed to the front surface of the display unit 151 .
  • a three-layer tape may be used by further adding an intermediate tape as shown in (b) of FIG. 13 .
  • the first intermediate tape 1516a-3 of the first tape 1516a has an intermediate length of the first upper tape 1516a-2 and the second lower tape 1516b-1, and the second upper tape 1516b-2 ) can be partially overlapped with
  • the second intermediate tape 1516b-3 is formed shorter than the second upper tape 1516b-2 and the second lower tape 1516b-1 as shown in (b), so that only the second upper tape 1516b-2 is used twice. It can be implemented to have a bent section. Alternatively, if the second intermediate tape 1516b-3 is formed to have an intermediate length between the second upper tape 1516b-2 and the second lower tape 1516b-1, the second intermediate tape 1516b-3 is also partially It may include a bent part.
  • the thickness of the tape of such a multi-stage structure should be designed so that the thickness of the tape in the overlapping section is the same.
  • the thickness of the first upper tape 1516a-2 is the same as the thickness of the second intermediate tape 1516b-3, and the thickness of the first intermediate tape 1516a-3 is the second lower tape.
  • the thickness of the tape 1516b-1 may be the same, and the thickness of the first lower tape 1516a-1 may be the same as the thickness of the second upper tape 1516b-2.
  • FIG. 14 and 15 are views showing another embodiment of the connecting portion of the adhesive tape of the present invention.
  • a liquid bridge resin 1516c is injected into the gap 1516g ((( in FIG. 14)).
  • the bridge resin 1516c may be cured by curing (FIG. 14(c)).
  • the adhesive tape 1516 in which the gap 1516g is removed may be provided as shown in FIG. 14D .
  • the amount of the bridge resin 1516c can be adjusted so that the bridge resin 1516c does not protrude from the first tape 1516a and the second tape 1516b or overflow above the first tape 1516a or the second tape 1516b. have. Rather than overflow, the injection amount of the bridge resin 1516c may be adjusted to be smaller than the size of the gap 1516g.
  • the first tape 1516a and the second tape 1516b may be attached to the backplate 1515 and then the bridge resin 1516c may be injected into the gap 1516g to form a bridge, but in the adhesive tape 1516 manufacturing process, the bridge A resin 1516c may be formed.
  • the first tape 1516a and the second tape 1516b are arranged side by side, and the bridge resin 1516c is injected therebetween to prepare an original plate of the adhesive tape 1516, and then cut the first tape 1516a and the second tape.
  • a single piece of adhesive tape 1516 in which the 1516b is connected to the bridge resin 1516c may be manufactured.
  • FIG. 16 is a view showing another type of mobile terminal to which the adhesive tape 1516 of the present invention is applied. As shown in (a) and (b), the angle between the two frames 101 and 102 is changed. and a mobile terminal in which the curvature of the display unit 151 changes.
  • the portion attached to the first frame 101 or the second frame is positioned between the fixing parts 151f and 151c and the first frame 101 and the second frame so that the curvature is reduced.
  • the variable portion includes a variable portion 151v.
  • the second tape 1516b covers the variable portion 151v and extends to at least a portion of the fixing portions 151f and 151c attached to the frame, and the first tape 1516a is attached to the remaining portions of the fixing portions 151f and 151c. can be located
  • the size of the gap 1516g between the first tape 1516a and the second tape 1516b in (c) may be reduced in the manner of FIG. 13 or 14 .
  • a display panel by applying the first tape 1516a and the second tape 1516b of the present invention to the flexible display unit 151 including the fixed portions 151f and 151c fixed to the frame and the variable variable portion 151v. (1510) and the back plate can be combined.
  • the mobile terminal of the present invention can maintain the state in which the display unit 151 is stably attached by providing an adhesive tape 1516 having different properties depending on the position of the flexible display unit 151 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephone Set Structure (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)

Abstract

La présente invention concerne un terminal mobile caractérisé en ce qu'il comprend : un corps ; et une unité d'affichage flexible qui comprend une partie fixe fixée à la surface avant du corps et une partie variable positionnée dans une première direction de la partie fixe et ayant une courbure variable. L'unité d'affichage flexible comprend : un panneau d'affichage à travers lequel une image est délivrée ; des plaques arrière positionnées sur la surface arrière du panneau d'affichage ; et une première bande et une seconde bande qui sont positionnées entre les plaques arrière du panneau d'affichage. La seconde bande est située dans une première direction de la première bande, l'adhésivité de la première bande est supérieure à l'adhésivité de la seconde bande, et la ductilité de la seconde bande est supérieure à la ductilité de la première bande.
PCT/KR2021/000862 2021-01-22 2021-01-22 Terminal mobile WO2022158614A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2021/000862 WO2022158614A1 (fr) 2021-01-22 2021-01-22 Terminal mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2021/000862 WO2022158614A1 (fr) 2021-01-22 2021-01-22 Terminal mobile

Publications (1)

Publication Number Publication Date
WO2022158614A1 true WO2022158614A1 (fr) 2022-07-28

Family

ID=82548810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/000862 WO2022158614A1 (fr) 2021-01-22 2021-01-22 Terminal mobile

Country Status (1)

Country Link
WO (1) WO2022158614A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160089583A (ko) * 2015-01-19 2016-07-28 삼성디스플레이 주식회사 표시 장치
KR20170036875A (ko) * 2015-09-18 2017-04-03 삼성디스플레이 주식회사 표시 장치 및 이의 제조 방법
KR20170082430A (ko) * 2016-01-06 2017-07-14 삼성전자주식회사 플렉서블 디스플레이 윈도우 및 그를 구비하는 전자 장치
KR20190101605A (ko) * 2018-02-23 2019-09-02 삼성전자주식회사 이동 가능한 플렉서블 디스플레이를 포함하는 전자 장치
KR20200077931A (ko) * 2018-12-21 2020-07-01 삼성전자주식회사 폴더블 전자 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160089583A (ko) * 2015-01-19 2016-07-28 삼성디스플레이 주식회사 표시 장치
KR20170036875A (ko) * 2015-09-18 2017-04-03 삼성디스플레이 주식회사 표시 장치 및 이의 제조 방법
KR20170082430A (ko) * 2016-01-06 2017-07-14 삼성전자주식회사 플렉서블 디스플레이 윈도우 및 그를 구비하는 전자 장치
KR20190101605A (ko) * 2018-02-23 2019-09-02 삼성전자주식회사 이동 가능한 플렉서블 디스플레이를 포함하는 전자 장치
KR20200077931A (ko) * 2018-12-21 2020-07-01 삼성전자주식회사 폴더블 전자 장치

Similar Documents

Publication Publication Date Title
WO2021167133A1 (fr) Terminal mobile
WO2021187641A1 (fr) Terminal mobile
WO2020166798A1 (fr) Terminal mobile
WO2021060693A1 (fr) Terminal mobile
WO2021206190A1 (fr) Terminal mobile
WO2021193993A1 (fr) Terminal mobile
WO2021075608A1 (fr) Terminal mobile
WO2021210710A1 (fr) Terminal mobile
WO2021112291A1 (fr) Terminal mobile
WO2021206191A1 (fr) Terminal mobile
WO2021141159A1 (fr) Terminal mobile
WO2021132744A1 (fr) Terminal mobile
WO2021246561A1 (fr) Terminal mobile
WO2022014750A1 (fr) Terminal mobile
WO2021206193A1 (fr) Terminal mobile
WO2021141146A1 (fr) Terminal mobile
WO2022114266A1 (fr) Terminal mobile
WO2021182649A1 (fr) Terminal mobile
WO2022114265A1 (fr) Terminal mobile
WO2022019358A1 (fr) Terminal mobile
WO2021045276A1 (fr) Terminal mobile et son procédé de commande
WO2022025324A1 (fr) Terminal mobile
WO2021015329A1 (fr) Terminal mobile
WO2021167236A1 (fr) Terminal mobile
WO2021210708A1 (fr) Terminal mobile

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21921386

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21921386

Country of ref document: EP

Kind code of ref document: A1