WO2020105767A1 - Terminal mobile - Google Patents

Terminal mobile

Info

Publication number
WO2020105767A1
WO2020105767A1 PCT/KR2018/014550 KR2018014550W WO2020105767A1 WO 2020105767 A1 WO2020105767 A1 WO 2020105767A1 KR 2018014550 W KR2018014550 W KR 2018014550W WO 2020105767 A1 WO2020105767 A1 WO 2020105767A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
sensor
fingerprint
touch
fingerprint sensor
Prior art date
Application number
PCT/KR2018/014550
Other languages
English (en)
Korean (ko)
Inventor
송인수
김창재
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/KR2018/014550 priority Critical patent/WO2020105767A1/fr
Publication of WO2020105767A1 publication Critical patent/WO2020105767A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones

Definitions

  • the present invention relates to a mobile terminal equipped with a fingerprint sensor on the rear case.
  • fingerprint sensing technology is the most basic biometric or authentication process, and furthermore, fingerprint recognition is used in small electronic devices such as smart phones, in addition to using fingerprint recognition for opening and closing doors or accessing servers. Since fingerprint recognition devices used in small electronic devices such as smartphones have to be small in size and recognition rate is also important, research on this has been actively conducted.
  • An object of the present invention is to provide a display device equipped with a fingerprint recognition sensor having a good recognition rate on the display unit.
  • a case including a rear case covering the rear surface; A display unit disposed on the front surface of the case; A control unit mounted inside the case; A color film attached to the inner surface of the rear case; A fingerprint sensor coupled to the surface of the color film to recognize a user's fingerprint; And a connection member connecting the control electrode and the connection electrode exposed on one side of the fingerprint sensor, and the control unit executes a predetermined function when the fingerprint recognized by the fingerprint sensor matches the fingerprint of a previously registered user.
  • a mobile terminal Provide a mobile terminal.
  • the fingerprint sensor includes a dielectric layered on one surface of the color film; A sensor electrode stacked on one surface of the dielectric; An insulating layer stacked on one surface of the sensor electrode; A connection electrode exposed on one side of the insulating layer; And a connection member connected to the connection electrode at one side and connected to the control unit at the other side.
  • the fingerprint sensor includes a first fingerprint sensor and a second fingerprint sensor disposed in a plurality of areas of the rear case, and the controller executes a first function when the first fingerprint sensor recognizes a fingerprint of a pre-registered user. And, when the second fingerprint sensor recognizes the fingerprint of the pre-registered user, the second function can be executed.
  • the rear case includes a first area in which the fingerprint sensor is located; And a second area in which a touch sensor is located, and the controller may control the mobile terminal by sensing a touch input and a touch and drag input detected by the touch sensor.
  • a metal side case located on the side of the case; It is disposed through the side case, and includes a side key including a first portion including a conductive material and a second portion including a non-conductive material surrounding the periphery of the first portion, and the touch sensor of the rear case It can be connected to the touch electrode.
  • the side key includes a plurality of first portions separated into a second portion, and the plurality of first portions can be connected to different touch electrodes, respectively.
  • the touch electrode connected to the side key may further include a blocking member between the rear case and the touch sensor so as not to sense the touch input applied from the rear surface of the mobile terminal.
  • a metal clip connecting the side key and the touch sensor may be further included.
  • the touch sensor may extend to the first portion of the side key.
  • the touch sensor may be formed on the surface of the color film.
  • irregularities or steps may be formed in an area corresponding to a portion where the fingerprint sensor is formed.
  • the fingerprint sensor can be implemented thinly, the degree of freedom in the placement of the fingerprint sensor can be increased, and the resolution of the front display unit is reduced or the sensitivity of the touch sensor is reduced by omitting the fingerprint sensor from the front. Can be solved.
  • FIG. 1A is a block diagram illustrating a display device related to the present invention.
  • FIGS. 1B and 1C are conceptual views of an example of a display device related to the present invention as viewed from different directions.
  • FIG. 2 is a view showing an electrostatic and optical fingerprint sensor.
  • FIG 3 is a view showing a connection mode between the fingerprint sensor on the front and the fingerprint sensor on the back.
  • FIG. 4 is a view showing a layered structure of the fingerprint sensor of the present invention.
  • FIG. 5 is a view showing an embodiment of the user input unit of the side using the fingerprint sensor of the present invention.
  • Figure 1a is a block diagram for explaining a mobile terminal 100 related to the present invention
  • Figures 1b and 1c is a different example of a mobile terminal 100 related to the present invention It is a conceptual view from the direction.
  • 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.
  • the components shown in FIG. 1A are not essential for implementing a mobile terminal, and thus the mobile terminal 100 described herein may have more or fewer components than those listed above.
  • the wireless communication unit 110 among the components, 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 and an external server It may include one or more modules that enable wireless communication between. Further, the wireless communication unit 110 may include one or more modules connecting the mobile terminal 100 to one or more networks.
  • the wireless communication unit 110 may include at least one of a broadcast receiving 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 may include a camera 121 for inputting a video signal or a video input unit, a microphone for inputting an audio signal (microphone 122), or an audio input unit, a user input unit 123 for receiving information from a user, for example , A touch key, a mechanical key, and the like.
  • the voice data or image data collected by the input unit 120 may be analyzed and processed by 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 includes a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity G-sensor, gyroscope sensor, motion sensor, RGB sensor, infrared sensor (IR sensor), fingerprint scan sensor, ultrasonic sensor , Optical sensor (e.g., camera (see 121)), microphone (see 122), battery gauge, environmental sensor (e.g.
  • the mobile terminal 100 disclosed in the present specification may combine and use information sensed by at least two or more of these sensors.
  • the output unit 150 is for generating output related to vision, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154 can do.
  • the display unit 151 may form a mutual layer structure with the touch sensor or may be integrally formed, thereby realizing a touch screen.
  • the touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and the user, and at the same time, 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.
  • the interface unit 160 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and 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.
  • I / O audio input / output
  • I / O video input / output
  • earphone port an earphone port
  • the memory 170 stores data supporting various functions of the mobile terminal 100.
  • the memory 170 may store a plurality of application programs (applications) or data for operation of the mobile terminal 100 and commands that are driven by the mobile terminal 100. At least some of these applications can be downloaded from external servers via wireless communication.
  • at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions of the mobile terminal 100 (for example, an incoming call, a calling function, a message reception, and a calling function).
  • the application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.
  • 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.
  • controller 180 may control at least some of the components discussed with reference to FIG. 1A to drive an application program stored in the memory 170. Furthermore, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 for driving the application program.
  • the power supply unit 190 receives external power and internal power to supply power to each component included in the mobile terminal 100.
  • the power supply unit 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.
  • At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the mobile terminal 100 according to various embodiments described below.
  • the operation, control, or control method of the mobile terminal 100 may be implemented on the mobile terminal 100 by driving at least one application program stored in the memory 170.
  • the disclosed mobile terminal 100 has a bar-shaped terminal body.
  • the present invention is not limited to this, and can be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, and a swivel type in which two or more bodies are coupled to move relative to each other . It will be related to a specific type of mobile terminal 100, but the description of a specific type of mobile terminal 100 can be generally applied to other types of mobile terminals 100.
  • the terminal body may be understood as a concept referring to the mobile terminal 100 as at least one aggregate.
  • the mobile terminal 100 includes a case (for example, a frame, a housing, a cover, etc.) forming an exterior. As illustrated, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.
  • a case for example, a frame, a housing, a cover, etc.
  • the mobile terminal 100 may include a front case 101 and a rear case 102.
  • Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102.
  • At least one middle case may be additionally disposed between the front case 101 and the rear case 102.
  • a display unit 151 is disposed on the front of the terminal body to output information. As illustrated, the cover glass 151a of the display unit 151 may be mounted on the front case 101 to form the front surface of the terminal body together with the front case 101.
  • electronic components may also be mounted on the rear case 102.
  • Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, and a memory card.
  • the rear case 102 may be detachably coupled to the rear cover 103 for covering the mounted electronic components. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.
  • the rear cover 103 when the rear cover 103 is coupled to the rear case 102, a part of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 when the coupling is performed. Meanwhile, an opening for exposing the camera 121b or the sound output unit 152b to the outside may be provided in the rear cover 103.
  • These cases (101, 102, 103) may be formed by injection of synthetic resin or may be formed of metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.
  • STS stainless steel
  • Al aluminum
  • Ti titanium
  • the mobile terminal 100 may be configured such that one case provides the interior space, unlike the above example in which a plurality of cases provide an interior space accommodating various electronic components.
  • the mobile terminal 100 of the unibody, in which the synthetic resin or metal extends from the side to the rear, may be implemented.
  • the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from entering the terminal body.
  • the waterproof portion is provided between the cover glass 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, these When combined, it may include a waterproof member that seals the interior space.
  • the mobile terminal 100 includes a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, the first and second units Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, and an interface unit 160 may be provided.
  • the mobile terminal 100 in which the second sound output unit 152b and the second camera 121b are disposed on the rear surface of the mobile terminal 100 will be described as an example.
  • first operation unit 123a may not be provided on the front of the terminal body, and the second sound output unit 152b may be provided on the side of the terminal body rather than the rear of the terminal body.
  • 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 by the mobile terminal 100, or UI (User Interface) or 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), a three-dimensional display (3D display), an electronic ink display (e-ink display).
  • two or more display units 151 may be present depending on the implementation form of the mobile terminal 100.
  • a plurality of display units may be spaced apart or integrally disposed on one surface, or may be disposed on different surfaces.
  • the display unit 151 may include a touch sensor that senses a touch on the display unit 151 so that a control command can be 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 can be configured to generate a control command corresponding to the touch based on the touch.
  • the content input by the touch method may be a letter or a number, or an instruction or designable menu item in various modes.
  • the touch sensor is configured in the form of a film having a touch pattern and is disposed between the display (not shown) on the back side of the cover glass 151a and the cover glass 151a, or directly patterned on the back side of the cover glass 151a. It can be a metal wire. Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on the substrate of the display, or may be provided inside the display.
  • the display unit 151 may form a touch screen together with a touch sensor, and in this case, the touch screen may function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.
  • the first sound output unit 152a may be implemented as a receiver that delivers a call sound to the user's ear, and the second sound output unit 152b is a loud speaker that outputs various alarm sounds or multimedia playback sounds. ).
  • An acoustic hole for emitting sound generated from the first sound output unit 152a may be formed on the cover glass 151a of the display unit 151.
  • the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between structures (for example, a gap between the cover glass 151a and the front case 101). In this case, the appearance of the mobile terminal 100 can be made simpler because the holes formed independently for the sound output are not visible or hidden.
  • the light output unit 154 is configured to output light to notify when an event occurs. Examples of the event include message reception, call signal reception, missed calls, alarm, schedule notification, email reception, information reception through an application, and the like.
  • the control unit 180 may control the light output unit 154 so that the output of light is terminated when the user's event confirmation is detected.
  • the first camera 121a processes an image frame of a still image or video obtained by an image sensor in a shooting mode or a video call mode.
  • the processed image frame may be displayed on the display unit 151, and may be stored in the memory 170.
  • the first and second operation units 123a and 123b are examples of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100, and may also be collectively referred to as a manipulating portion. have.
  • the first and second operation units 123a and 123b may be employed in any manner as long as the user operates the device with a tactile feeling, such as touch, push, scroll, and the like.
  • the first and second manipulation units 123a and 123b may be employed in such a way that the user operates without a tactile feeling through a proximity touch, a hovering touch, or the like.
  • the first operation unit 123a is illustrated as a touch key, but the present invention is not limited thereto.
  • the first operation unit 123a may be a mechanical key or a combination of a touch key and a push key.
  • Contents input by the first and second operation units 123a and 123b may be variously set.
  • the first operation unit 123a receives commands such as a menu, home key, cancel, search, etc.
  • the second operation unit 123b is output from the first or second sound output units 152a, 152b. Commands such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151 may be received.
  • a rear input unit (not shown) may be provided.
  • the rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and the input content may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control the volume of sound output from the first and second sound output units 152a, 152b, and touch recognition mode of the display unit 151. You can receive commands such as conversion of.
  • the rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.
  • the rear input unit may be disposed to overlap with the front display unit 151 in the thickness direction of the mobile terminal 100.
  • the rear input unit may be disposed on the upper rear portion of the mobile terminal 100 so as to be easily operated using the index finger.
  • the present invention is not necessarily limited to this, and the position of the rear input unit may be changed.
  • the rear input unit When the rear input unit is provided on the rear of the mobile terminal 100 as described above, a new type of user interface using the rear input unit may be implemented. In addition, by replacing at least some of the functions of the first operation unit 123a provided on the front of the mobile terminal 100, the touch screen or the rear input unit described above, the first operation unit 123a on the front of the mobile terminal 100. If not, the display unit 151 may be configured as a larger screen.
  • the mobile terminal 100 may be provided with a fingerprint sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint sensor as an authentication means.
  • the fingerprint sensor may be embedded in the display unit 151 or the user input unit 123.
  • 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 is 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 other devices (eg, earphones, external speakers), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port (Bluetooth) Port, 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 that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.
  • SIM subscriber identification module
  • UIM user identity module
  • a second camera 121b may be disposed on the back of the mobile terminal 100.
  • the second camera 121b has a shooting direction substantially opposite to the first camera 121a.
  • the second camera 121b may include a plurality of lenses arranged along at least one line.
  • the plurality of lenses may be arranged in a matrix format.
  • Such a camera may be referred to as an 'array camera'.
  • the second camera 121b is configured as an array camera, images may be photographed in various ways using a plurality of lenses, and images of a better quality may be obtained.
  • the flash 124 may be disposed adjacent to the second camera 121b. When the flash 124 photographs the subject with the second camera 121b, the light is directed toward the subject.
  • the second audio output unit 152b may be additionally disposed on the mobile terminal 100.
  • the second sound output unit 152b may implement a stereo function together with the first sound output unit 152a, or may be used to implement a speakerphone mode during a call.
  • the mobile terminal 100 may be provided with at least one antenna for wireless communication.
  • the antenna may be built in the mobile terminal 100 or formed in a case.
  • the antenna forming part of the broadcast receiving module 111 may be configured to be pulled out from the mobile terminal 100.
  • the antenna may be formed of a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.
  • the mobile terminal 100 is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100.
  • the power supply unit 190 may include a battery 191 built in the mobile terminal or configured to be detachable from the outside of the mobile terminal 100.
  • the battery 191 may be configured to receive power through a power cable connected to the interface unit 160. Also, the battery 191 may be configured to be wirelessly charged through a wireless charger.
  • the wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).
  • the rear cover 103 is coupled to the rear case 102 so as to cover the battery 191 to limit the detachment of the battery 191, and is configured to protect the battery 191 from external shocks and foreign objects.
  • the rear cover 103 may be detachably coupled to the rear case 102.
  • an accessory that protects the appearance or assists or expands the function of the mobile terminal 100 may be added.
  • An example of such an accessory is a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100.
  • the cover or pouch may be configured to expand the function of the mobile terminal 100 in conjunction with the display unit 151.
  • Another example of an accessory is a touch pen for assisting or extending a touch input to a touch screen.
  • the mobile terminal 100 including the display unit may also be equipped with a biometric technology, and a fingerprint recognition device may be mounted in a manner having the highest recognition rate among biometric technologies.
  • a user's fingerprint was recognized by having a button or a separate fingerprint recognition unit, but recently, the size of the display unit is larger, and buttons other than the display unit on the front are minimized. It is a difficult situation. To solve this problem, a fingerprint sensor can be directly placed on the display unit.
  • the display unit may use a display unit in which a backlight is omitted using an organic light emitting diode.
  • an organic light emitting diode that emits light is disposed on the rear surface of the transparent polymer layer, and an electrode layer that controls light emitted by the organic light emitting diode is disposed on the rear surface.
  • a display unit that transmits light at least partially can be implemented, and a fingerprint sensor is mounted on the rear surface of the display unit using an organic light emitting diode to recognize the fingerprint of a finger located in front of the display unit.
  • FIG. 2 is a view showing a layered structure of the fingerprint sensor 145.
  • (a) is an electrostatic fingerprint sensor and
  • (b) is an optical fingerprint sensor.
  • the capacitive fingerprint sensor may read a fingerprint shape according to a potential difference between a finger ridge 11 and a finger valley 10 when a user's finger 10 contacts the conductor. In the case of having an independent fingerprint sensor, the method is most easily implemented, and the method used so far is the capacitive type.
  • the distance between the conductor 20 and the user's fingerprint should be short (level of 0.1 mm), and the thickness of the display unit 151 is thicker than the distance required by the capacitive type, so that the fingerprint cannot be accurately recognized.
  • Implementing a fingerprint sensor directly under the front surface of the display unit 151, that is, directly under the cover glass 151a is expensive and has a problem affecting an image output from the display unit.
  • the fingerprint sensor must secure a high resolution in order to detect the fine shape of the fingerprint, but it is difficult to form a fine sensor pattern because interference occurs because it is arranged like a touch sensor.
  • the optical fingerprint sensor has a simple structure compared to the electrostatic fingerprint sensor, and unlike the electrostatic method, it can detect even if the distance to the fingerprint is 1 mm or more, and can be disposed on the rear surface of the OLED display.
  • the optical fingerprint sensor can be largely divided into an infrared method and a visible light method. When an infrared light source is emitted toward the user's finger 10, light is absorbed by the user's finger 10 in the protruding portion 11 while light is reflected in the concave portion 12 to be detected by the optical sensor 1451. Can be.
  • the organic light emitting diode of the display unit may be damaged by infrared rays
  • a member guiding the light emitted from the infrared light source to be directed toward the front surface rather than directly reaching the organic light emitting diode is placed on the front surface of the organic light emitting diode.
  • the thickness of the display unit 151 increases by adding the member for guiding the light, and if it is omitted, there is a problem that the organic light emitting diode is damaged, and the present invention provides organic light emission as shown in FIG.
  • a visible light fingerprint sensor that reads a fingerprint using light emitted from a diode can be used.
  • the organic light emitting diode display 151 is a type in which a plurality of organic light emitting diodes and electrodes are arranged in a lattice on a transparent substrate, so that light can pass between the organic light emitting diodes, so that the light emitted from the organic light emitting diode is the user's finger ( It can be reflected from 10) to reach the optical sensor 1451 located on the rear surface of the display unit 151.
  • unevenness of the fingerprint may be detected using light emitted from the organic light emitting diode.
  • light emitted from the organic light emitting diode is reflected to detect the light reflected from the optical sensor 1451, and in the concave portion 12, light is scattered and injected into the concave portion
  • the optical sensor 1451 cannot detect the light.
  • the rear surface of the optical sensor 1451 may further include a base substrate 1452 on which the optical sensor 1451 is mounted, and the front surface of the optical sensor 1451 to increase the recognition rate by collecting light reaching the optical sensor 1451 It may further include an optical layer 1457 located on.
  • the optical layer 1457 may include a plurality of micro lenses.
  • the pitch of the micro lens serves to collect light to each pixel of the optical sensor 1451, so it may have a value of 1 / n of the optical sensor pixel. That is, one micro lens per optical sensor (the pitch between the micro lenses is equal to the pitch between the optical sensor pixels) or four (the pitch between the micro lenses is 1/2 of the pitch between the optical sensor pixels). Can be.
  • the ultrasonic fingerprint sensor is also possible in one way, but there is a problem in that the size of the parts is large, which makes it difficult to apply to the mobile terminal 100.
  • a part of the display unit 151 is used as the recognition unit of the fingerprint sensor 145, it may affect the resolution of the screen or the performance of the touch sensor 144, and it is easy to secure the performance of the fingerprint sensor 145 itself. Does not.
  • FIG. 3 is a view showing a method of connecting the main substrate 181 for controlling the mobile terminal 100 as a fingerprint sensor 145 and a control unit
  • FIG. 3 (a) is combined with the front display unit 151
  • the fingerprint sensor 145 is illustrated
  • FIG. 3 (b) shows the fingerprint sensor 145 located in the rear rear case.
  • the connection member 1456 for connecting it to the main substrate 181 uses an opaque material in consideration of product reliability and the like. do.
  • the opaque material is disposed in the active area in which the image of the display unit 151 is output, there is a problem seen from the front side, and it must be disposed in the bezel 151c.
  • the size of the bezel 151c is increased in order to cover an air gap by generating an air gap due to a step that occurs when the flexible substrate 1456 is connected.
  • the flexible substrate 1456 extends and bends at the end of the display unit 151 so that the flexible substrate 1456 is bent as much as the bent space ( There is a problem that the size of 151c) is further increased.
  • the mobile terminal 100 of the present invention is characterized in that the fingerprint sensor 145 is disposed on the rear case 102 as shown in FIG. 1C.
  • the fingerprint sensor 145 is implemented by placing a button on the back or separately, but the fingerprint sensor 145 of the present invention is provided on the inner surface of the rear case 102 to realize the color of the rear case 102 on the back. It is characterized in that formed on the color film 1023 to be attached.
  • the rear case 102 of the present invention forms a base case 1021 exposed to the outside using a non-conductive material such as glass or plastic, and stacks a color film 1023 on the inner surface to form a color film for the mobile terminal 100 (1023)
  • a variety of colors and patterns on the back can be implemented.
  • a light blocking material may be included so as not to expose the electronic components disposed therein to the outside.
  • the color film 1023 may be formed by depositing a color layer 1023a on a base film 1023b such as a PET film, and may be attached to the base case 102c using an adhesive tape 1024.
  • the fingerprint sensor 145a formed with the dielectric layer 1451 and the sensing electrode 1452 may be attached to the color film 1023 on the separate base film 1457 as shown in FIG. 4A. ), A dielectric layer 1451 and a sensing electrode 1452 can be formed directly on the color film 1023 without separate base films, and the fingerprint sensor 145b and the color film 1023 may be integrally formed. When forming the fingerprint sensor 145b based on the color film 1023, it is possible to minimize an increase in thickness due to the fingerprint sensor 145b.
  • the fingerprint sensors 145a and 145b may further include an insulating layer 1452 covering the sensing electrode 1452 to protect the sensing electrode 1452, and the flexible connecting the sensing electrode 1452 and the controller 180 may be included.
  • the insulating layer 1452 may be partially removed and a connection terminal 1355 exposed to the outside may be formed.
  • connection portion for connecting the fingerprint sensor 145 to the main substrate 181, that is, the connection terminal 1555 and the flexible substrate 1456 are opaque, but the color film 1023 is opaque, so the connection terminal 1555 and the flexible There is an advantage that there is no restriction on the position of the substrate 1456. That is, since the connection terminal 1355 or the flexible substrate 1456 is covered by the color film 1023, the position of the fingerprint sensor 145 can also be freely arranged, so it is not necessary to be located at the end of the mobile terminal 100. .
  • the mobile terminal 100 when the mobile terminal 100 is held, it may be disposed on the lower side of the camera 121b where the index finger is located.
  • the fingerprint sensor 145 is implemented on the color film 1023, the thickness is thinner than that of implementing and attaching a separate module, so that it can be formed wider as shown in FIG. 1C.
  • a fingerprint sensor 145 ' is provided in a plurality of areas, so that a specific function requiring user authentication can be directly executed in a locked state.
  • a plurality of fingerprint sensors 145 ' is provided at an upper portion of the rear case 102, and applications of personal information or financial functions such as a messenger, gallery, bank application, and personal schedule can be interlocked. .
  • each fingerprint sensor 145b When the fingerprint of the registered user is recognized in each fingerprint sensor 145b, there is an advantage of reducing the time to enter a specific application and immediately executing the application. In this case, small irregularities or grooves / steps may be formed so that the user can detect the position of the fingerprint sensor 145 'by touching it.
  • the touch sensor 144 may be implemented on the color film 1023 layer on the rear surface of the rear case 102.
  • a scroll input or a touch input can be detected. Since the fingerprint sensor 145 has a more precise structure than the touch sensor 144, it is difficult to form a large area, but the touch sensor 144 can be easily formed at a lower cost than the fingerprint sensor 145. .
  • the touch sensor 144 formed on the front surface is formed precisely because a small portion of the touch must also be recognized, but the touch sensor 144 formed on the rear case 102 is formed to have a lower density than the front touch sensor 144. can do. Even if the touch input of the back surface needs only to detect a scroll or limited touch input, it is possible to implement the function even if the precision is lower than that of the front touch sensor 144.
  • the mobile terminal 100 of the present invention can omit the holes for the back button or the fingerprint sensor 145 as well as the holes for the side keys located on the side.
  • 5 is a view showing an embodiment of the implementation of the user input of the side using the fingerprint sensor 145 of the present invention.
  • the side key composed of a metal dome and a top button must form a hole on the side of the case, so an additional waterproof structure must be provided and it becomes a factor deteriorating the waterproof reliability.
  • Force sensors or the like may be used in order not to form a hole, but there is a difficulty in terms of design or structural rigidity because the material of the side case must be deformed when the user presses it. In addition, there is a limit in implementing an antenna using the side case 104 made of metal, so it is not easy to apply the force sensor to the side key.
  • the present invention includes a first portion 1231 made of a conductive material so that when the user's input is sensed by the side key 123b, it can be detected by the touch sensor 144 ', and the first portion 1231 is illustrated in FIG. 4. As shown in one side is exposed to the outside and the other side is connected to the touch sensor 144 'inside the case.
  • the side key 123b may include a second portion 1232 made of a non-conductive material around the first portion 1231.
  • the second portion 1232 distinguishes the side case 104 used as an antenna from the first portion 1231 of the side key 123b. Without the second portion 1232, the side case 104 and the touch sensor 144 are electrically connected, so that the antenna cannot be implemented using the side case 104.
  • the touch sensor 144 'formed on the color film 1023 of the rear case 102 and the conductive portion of the side key 123b may be connected using a metal clip 1235 as shown in Fig. 5A. 5B, the touch sensor itself may be extended to directly connect the conductive portion of the side key 123b.
  • each of the non-conductive materials is wrapped and partitioned, and the divided conductive parts are respectively touch sensors 144 '. It is connected to another touch electrode through another metal clip or directly. That is, each side key 123b input may be sensed by sensing the touch sensor 144 'as a touch at a different location.
  • functions for example, volume up and down keys, AI function keys, etc.
  • the touch sensor 144 ′ located at the end of the rear case 102 connected to the side key 123b may be deactivated so that the rear touch input is not detected in order to sense the input of the side key 123b.
  • the side key 123b can also be implemented, and the dome key structure of the conventional side key 123b can be omitted, so The degree of freedom in the placement structure increases.
  • the opening for the side key 123b can be omitted, so that the defect rate can be further lowered in terms of waterproofing.
  • the fingerprint sensor can be implemented thin, the degree of freedom in the arrangement of the fingerprint sensor can be increased.
  • the fingerprint sensor by omitting the fingerprint sensor from the front, it is possible to solve the problem that the resolution of the front display unit is lowered or the sensitivity of the touch sensor is deteriorated.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne un terminal mobile qui comprend : un boîtier comprenant un boîtier arrière recouvrant la surface arrière du boîtier ; une unité d'affichage agencée sur la surface avant du boîtier ; une unité de commande montée à l'intérieur du boîtier ; un film couleur fixé à la surface interne du boîtier arrière ; un capteur d'empreintes digitales couplé à la surface du film couleur et reconnaissant l'empreinte digitale d'un utilisateur ; un élément de connexion connectant, à l'unité de commande, une électrode de connexion exposée sur un côté du capteur d'empreintes digitales, l'unité de commande exécutant une fonction prédéterminée lorsqu'une empreinte digitale reconnue par le capteur d'empreintes digitales correspond à une empreinte digitale préenregistrée de l'utilisateur, et étant donné que le capteur d'empreintes digitales est conçu pour être mince dans le terminal mobile, le degré de liberté dans l'agencement du capteur d'empreintes digitales peut augmenter, et étant donné que le capteur d'empreintes digitales est omis de la surface avant du terminal mobile, un problème de diminution de la résolution d'une unité d'affichage avant ou de diminution de la sensibilité d'un capteur tactile peut être résolu.
PCT/KR2018/014550 2018-11-23 2018-11-23 Terminal mobile WO2020105767A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2018/014550 WO2020105767A1 (fr) 2018-11-23 2018-11-23 Terminal mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2018/014550 WO2020105767A1 (fr) 2018-11-23 2018-11-23 Terminal mobile

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WO2020105767A1 true WO2020105767A1 (fr) 2020-05-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001056204A (ja) * 1999-08-19 2001-02-27 Sony Corp 静電容量式指紋センサ
KR20100138579A (ko) * 2009-06-25 2010-12-31 엘지전자 주식회사 케이스에 장착된 터치 센서를 이용한 이동 단말기 및 그 제어 방법
KR20130045111A (ko) * 2011-10-25 2013-05-03 엘지전자 주식회사 이동 단말기 및 그의 후면 커버 터치를 이용한 동작 제어 방법
KR20170037463A (ko) * 2015-09-25 2017-04-04 엘지전자 주식회사 이동 단말기
KR20180053422A (ko) * 2015-10-07 2018-05-21 시냅틱스 인코포레이티드 지문 감지를 위한 이미지 센서 구조체들

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001056204A (ja) * 1999-08-19 2001-02-27 Sony Corp 静電容量式指紋センサ
KR20100138579A (ko) * 2009-06-25 2010-12-31 엘지전자 주식회사 케이스에 장착된 터치 센서를 이용한 이동 단말기 및 그 제어 방법
KR20130045111A (ko) * 2011-10-25 2013-05-03 엘지전자 주식회사 이동 단말기 및 그의 후면 커버 터치를 이용한 동작 제어 방법
KR20170037463A (ko) * 2015-09-25 2017-04-04 엘지전자 주식회사 이동 단말기
KR20180053422A (ko) * 2015-10-07 2018-05-21 시냅틱스 인코포레이티드 지문 감지를 위한 이미지 센서 구조체들

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