WO2016202278A1 - Appareil de reconnaissance d'empreinte digitale, écran tactile et terminal mobile - Google Patents

Appareil de reconnaissance d'empreinte digitale, écran tactile et terminal mobile Download PDF

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Publication number
WO2016202278A1
WO2016202278A1 PCT/CN2016/086043 CN2016086043W WO2016202278A1 WO 2016202278 A1 WO2016202278 A1 WO 2016202278A1 CN 2016086043 W CN2016086043 W CN 2016086043W WO 2016202278 A1 WO2016202278 A1 WO 2016202278A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
disposed
slot
circuit board
flexible circuit
Prior art date
Application number
PCT/CN2016/086043
Other languages
English (en)
Chinese (zh)
Inventor
张海平
Original Assignee
广东欧珀移动通信有限公司
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 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Publication of WO2016202278A1 publication Critical patent/WO2016202278A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor

Definitions

  • the present invention relates to the field of fingerprint recognition technologies, and in particular, to a fingerprint identification device, a touch screen, and a mobile terminal.
  • fingerprint recognition devices have been widely used in various portable mobile terminals.
  • the user can implement functions such as unlocking the phone and paying for fingerprint recognition through the fingerprint identification device.
  • the existing electronic products such as mobile phones and tablet computers, need to be punched in the touch cover panel, and adopt LGA (Land Grid Array) packaging technology in the mobile terminal.
  • the fingerprint sensor is attached to the punching hole of the cover, and then a through hole is directly formed in the surface of the cover of the mobile terminal to expose the touch sensing area of the fingerprint sensor, so that the fingerprint sensor can perform fingerprint detection.
  • opening the through hole on the surface of the cover of the mobile terminal affects the strength of the cover.
  • the through hole exists at the bottom of the screen, which affects the integrity of the screen, thereby affecting the aesthetic appearance of the mobile terminal.
  • the invention provides a fingerprint identification device with better strength, sensitive fingerprint sensing and flat appearance.
  • the invention also provides a touch screen and a mobile terminal.
  • the invention provides a fingerprint identification device, comprising: a panel and a fingerprint identification module; the fingerprint identification module comprises a flexible circuit board, a control component and a fingerprint sensor, and the control component and the fingerprint sensor are disposed adjacent to the flexible circuit board;
  • the fingerprint sensor is configured to sense a fingerprint of a user's finger; the control component is electrically connected to the fingerprint sensor;
  • the panel is provided with a first surface and a second surface disposed opposite to the first surface; a receiving groove extends from the second surface of the panel toward the inside of the panel;
  • a portion of the flexible circuit board on which the fingerprint sensor is disposed is received in the receiving slot, adjacent to a position on the first surface for touch; and a control component disposed on the flexible circuit board is partially adhered to The control element disposed on the second surface or on the flexible circuit board is partially received in the receiving slot.
  • the accommodating groove includes a first groove and a second groove penetrating the first groove, the first groove extending direction is parallel to the second surface, and the second groove extends toward the second surface.
  • the second groove is shaped on the second surface a portion penetrating the second surface, a portion of the flexible circuit board on which the fingerprint sensor is disposed is received in the first slot; and a control element disposed on the flexible circuit board is partially passed through the notch or received in the In the first slot.
  • the receiving groove is a groove having an L-shaped cross section
  • the second groove is disposed perpendicular to one end of the first groove
  • the length of the first groove is greater than or equal to a fingerprint sensor on the flexible circuit board.
  • the length of the portion of the fingerprint sensor is located in the first slot, and the control component portion disposed on the flexible circuit board is disposed on the second surface through the notch.
  • the accommodating slot is disposed at an intermediate position of one end of the panel, the position of the first slot is opposite to a fingerprint identification position on the first surface, and a part of the flexible circuit board is located in the first slot.
  • the flexible circuit board is provided with a portion of the control element extending through the second slot through the gap to the second surface and is bent and attached to the second surface.
  • the receiving groove is a groove having an "L" shape in cross section, the second groove is disposed perpendicular to one end of the first groove; the groove width of the first groove is slightly larger than the thickness of the flexible circuit board, and The length of the first slot is greater than or equal to the length of the flexible circuit board, and the fingerprint sensor and the control component are disposed in the first slot, and the fingerprint sensor and the control component are Located in the same plane.
  • the accommodating slot is disposed at one end of the panel, and one end of the first slot is disposed at a central portion of one end of the panel, and the flexible circuit board is completely extended by the second slot. Installed in the first tank.
  • the receiving groove is a groove having a "T" shape in section
  • the second groove is disposed at a middle position perpendicular to the first groove
  • the length of the first groove is greater than or equal to a length of the flexible circuit board
  • a fingerprint sensor and a control component are disposed in the first slot, and the fingerprint sensor and the control component are located at two sides of the second slot.
  • the position of the first surface of the panel relative to the fingerprint sensor is formed with a recess, and the recess is a position for touch.
  • the first groove is formed with an identification layer at a position relative to the concave portion; the identification layer is a color layer or a translucent frosted layer.
  • first slot and the second slot are strip slots.
  • the first groove extending direction is disposed in the panel parallel to the first surface, and a side of the first surface adjacent to the first groove is a first side wall, and the second groove is The first slot is vertically disposed, and the portion of the flexible circuit board on which the fingerprint sensor is disposed is received in the first slot, and the fingerprint sensor is disposed adjacent to the first sidewall.
  • the first slot extending direction is disposed in the panel parallel to the first surface, and a side of the first surface adjacent to the first slot is a first sidewall, and the second slot And the first slot is disposed at a preset inclination angle, and the portion of the flexible circuit board provided with the fingerprint sensor is received in the first slot, and the fingerprint sensor is disposed adjacent to the first sidewall.
  • the concave portion is an arcuate groove recessed into the first surface.
  • identification layer is formed on the surface of the groove wall of the concave portion in the first groove when the panel is formed.
  • control element and the fingerprint sensor are disposed at two ends of the same surface of the flexible circuit board.
  • control element and the fingerprint sensor are disposed adjacent to opposite surfaces of the flexible circuit board.
  • the present invention provides a touch screen, the touch screen includes a display module and the fingerprint identification device, and the display module includes a visible area and a non-visible area disposed around the visible area, and the fingerprint identification apparatus is In the display module, the panel portion is opposite to the visible area of the display module.
  • the invention provides a mobile terminal, which comprises a body and the fingerprint identification device, and the fingerprint identification device is disposed on the body.
  • the mobile terminal further includes a display module disposed on the body, the display module includes a visible area and a non-visible area disposed around the visible area, and the panel covers the display module.
  • the second surface is in contact with the surface of the display module; the receiving groove is located in the non-visible area.
  • the main body includes a display module and a back surface disposed opposite to the display module, the panel is disposed on the back surface, and the second surface is attached to the back surface.
  • the fingerprint recognition device of the present invention has a fingerprint sensor embedded in the panel, and the surface of the panel for touch is flat without opening, so that the mobile terminal having the fingerprint recognition device has complete and good appearance and strength. Not only can the panel opening of the mobile terminal be avoided, but the panel strength is reduced, and the complete appearance of the mobile terminal is ensured.
  • Figure 1 is an exploded cross-sectional view showing the fingerprint identification device of the present invention
  • Figure 2 is a cross-sectional view showing the assembled fingerprint identification device of Figure 1;
  • Figure 3 is a schematic cross-sectional view of the fingerprint recognition device of Figure 1 having a recess
  • Figure 4 is a cross-sectional view showing a fingerprint identification device according to a second embodiment of the present invention.
  • Figure 5 is a cross-sectional view showing a fingerprint recognition apparatus according to a third embodiment of the present invention.
  • the invention provides a fingerprint recognition touch screen and a mobile terminal.
  • the fingerprint identification device according to the embodiment of the present invention can be applied to mobile terminals such as mobile phones, tablet computers, notebook computers, media players, and the like, and can also be applied to an automatic teller.
  • Financial terminal equipment such as Automated Teller Machine (ATM).
  • the present invention provides a fingerprint identification device, a touch screen, and a mobile terminal having the fingerprint identification device.
  • the fingerprint identification device includes a panel 10 and a fingerprint recognition module 15.
  • the fingerprint recognition module 15 includes a flexible circuit board 151, a control element 153, and a fingerprint sensor 155.
  • the control element 153 and the fingerprint sensor 155 are disposed adjacent to the flexible circuit board 151; the fingerprint sensor 155 is used to sense the fingerprint of the user's finger; and the control element 153 is electrically connected to the fingerprint sensor.
  • the panel 10 is provided with a first surface 11 and a second surface 12 disposed opposite the first surface 11.
  • the second surface 12 is provided with a receiving groove 13.
  • the receiving groove 13 extends from the second surface 12 of the panel 10 toward the inside of the panel 10 , and includes a first groove 131 and a second groove 132 penetrating the first groove 131 .
  • the first slot 131 extends in a direction parallel to the second surface 12, the second slot 132 extends toward the second surface 12, and the second slot 132 forms a second through the second surface 12
  • the control element provided on the flexible circuit board 151 is partially attached to the second surface 12, or the control element provided on the flexible circuit board 151 is partially received in the receiving groove 13.
  • a portion of the flexible circuit board 151 on which the fingerprint sensor 155 is disposed is received in the first slot 131, and the fingerprint sensor 155 is located in the first slot 131 near the first surface 11 for contact.
  • the position of the control element 153 provided on the flexible circuit board 151 is adhered to the second surface 12 through the notch 133, or the control element 153 provided on the flexible circuit board 151 is partially received in the control unit 153.
  • the first groove 131 is inside.
  • the touch screen includes a display module, and the display module includes a visible area and a non-visible area disposed around the visible area, and the fingerprint identification device is disposed in the display mode.
  • the panel portion is opposite to the visible area of the display module.
  • the mobile terminal includes a body, the touch screen disposed on the body, and a back surface disposed opposite to the touch screen.
  • the panel covers the display module, and the second surface is in contact with the surface of the display module; the receiving slot is located in the non-visible area. It can be understood that the panel may be disposed on the back surface as a back shell of the mobile terminal, and the second surface is attached to the back surface.
  • the panel 10 of the present invention may be made of any one of transparent glass, sapphire, and transparent resin, wherein the transparent glass includes ordinary glass and tempered glass.
  • the panel 10 is made of a sapphire material.
  • the panel 10 is a cover plate disposed on the body, and the first surface 11 is a touch surface.
  • the panel 10 is disposed on the display module, and the panel 10 can be used as a display interface protection device of the mobile terminal or an operation interface input by the user, such as a touch screen operated by the user.
  • the panel 10 can be used as a display screen for viewing by a user of the mobile terminal.
  • the fingerprint identification device of the present invention is used on a mobile terminal without increasing the thickness of the mobile terminal, and more importantly, there is no need to dig holes in the panel, and the fingerprint sensor 155 is skillfully embedded in the panel 10 to ensure the operation on the mobile terminal.
  • the strength and integrity of the panel 10 further ensures that the mobile terminal has a flat appearance and enhances the aesthetic appearance of the mobile terminal.
  • a recess 14 is formed on the first surface 11 of the panel 10 relative to the fingerprint sensor 155 .
  • the recess 14 is a position for touch.
  • an identification layer 142 is formed in the first groove 131 at a position relative to the concave portion 14; the identification layer 142 is a color layer or a translucent frosted layer.
  • the recess 14 is an arcuate groove recessed into the first surface 11 .
  • the identification layer is formed in the first slot when the panel is molded
  • the groove wall surface of the recess 14 in the vicinity of 131.
  • the recess 14 facilitates the user to accurately touch the position of the panel corresponding to the fingerprint sensor 155 by hand when the user needs to activate the fingerprint recognition device.
  • the identification layer is convenient for the user to visually find the fingerprint recognition location and to decorate the appearance of the panel.
  • the identification layer 142 and the recess 14 may be omitted. Set according to the design requirements of the mobile terminal.
  • the first groove 131 and the second groove 132 are strip-shaped grooves.
  • the first slot 131 is disposed in the panel 10 in parallel with the first surface 11 .
  • One side of the first surface 11 adjacent to the first slot 131 is a first sidewall. Standard).
  • the second groove 132 may be disposed perpendicular to the first groove 131 or may be disposed at an oblique angle to the first groove 131, that is, may be disposed obliquely with the second surface 12.
  • a portion of the flexible circuit board 151 on which the fingerprint sensor 155 is disposed is received in the first slot 131 and the fingerprint sensor 155 is disposed adjacent to the first sidewall, thereby implementing the fingerprint sensor 155 from the first surface.
  • the distance of 11 is closest, which facilitates the fingerprint sensor 155 to recognize the touch of the finger.
  • the receiving groove 13 is a groove having an L-shaped cross section, and the second groove 132 is disposed perpendicular to one end of the first groove 131.
  • the length of the first slot 131 is greater than or equal to the length of the portion of the flexible circuit board 151 on which the fingerprint sensor 155 is disposed, the fingerprint sensor 155 is located in the first slot 131, and the control is provided on the flexible circuit board 151.
  • a portion of the element 153 is attached to the second surface 12 through the gap 133.
  • the groove width of the first groove is slightly larger than the thickness of the portion of the flexible circuit board 151 on which the fingerprint sensor 155 is disposed.
  • the receiving slot 13 is disposed at an intermediate position of one end of the panel 10, and the position of the first slot 131 is opposite to the fingerprint identifying position on the first surface 11.
  • a portion of the flexible circuit board 151 is located in the first slot 131 such that the fingerprint sensor 155 is disposed in parallel with the first surface 11.
  • the flexible circuit board 151 is provided with a portion of the control element 153 extending through the second slot 132 through the gap 133 to the second surface 12, and then bent and attached to the second surface 12, which is controlled in the present embodiment.
  • a portion of the element 153 is attached to the second surface 12 at a position opposite the fingerprint sensor 155. It can be understood that the flexible circuit board 151 is provided with a portion of the control element 153 attached to the second surface 12 on the side of the notch 133 away from the fingerprint sensor 155.
  • the groove width of the first groove 131 is slightly larger than the thickness of the flexible circuit board 151, and the first groove 131 is The length of the flexible circuit board 151 is greater than or equal to the length of the flexible circuit board 151.
  • the portions of the flexible circuit board 151 on which the fingerprint sensor 155 and the control element 153 are disposed are all accommodated in the first slot 131.
  • the fingerprint sensor 155 is in the same plane as the control element 153.
  • the receiving slot 13 is disposed at one end of the panel 10, and one end of the first slot 131 is disposed at a central portion of one end of the panel 10.
  • the flexible circuit board 151 is mounted in the first slot 131 in a fully extended flat shape through the second slot 132, so that the fingerprint sensor 155 is disposed opposite to the fingerprint recognition position on the first surface 11, the control component 153 is located away from the fingerprint sensor 155.
  • the receiving groove 13 is a groove having a "T" shape in section, and the second groove 132 is perpendicular to a middle position of the first groove 131, the first The length of the groove 141 is greater than or equal to the length of the flexible circuit board 151.
  • the flexible circuit board 151 is provided with a fingerprint sensor and a control component portion are respectively received in the first slot, The fingerprint sensor and the control element are located at both sides of the second slot.
  • the fingerprint sensor 155 and the control element 153 of the fingerprint recognition module 15 of the fingerprint recognition device of the present invention are not integrally packaged in the same chip, but are separately and separately disposed on the surface of the flexible circuit board 151. And electrically connected to the flexible circuit board 151, respectively.
  • the control element 153 is electrically coupled to the fingerprint sensor 155 via the flexible circuit board 151 such that the signal of the fingerprint sensor 155 is transmitted to the control element 153 for processing.
  • control element 153 and the fingerprint sensor 155 are disposed at two ends of the same surface on the flexible circuit board 151. It can be understood that the control element 153 and the fingerprint sensor 155 are disposed adjacent to opposite surfaces on the flexible circuit board 151.
  • the substrate of the flexible circuit board 151 can be made of at least one layer of polyimide film (PI film). It can also be composed of a layer of polyimide substrate combined with a protective layer of other materials.
  • the fingerprint sensor 155 is formed on an end of a surface of the flexible circuit board 151. The fingerprint sensor 155 is used to sense the finger pressing of the panel 10 and collect fingerprint information of the user's finger.
  • the fingerprint sensor 155 can be an optical fingerprint sensor, a capacitive fingerprint sensor, a piezoelectric fingerprint sensor or an ultrasonic fingerprint sensor. In this embodiment, the fingerprint sensor 155 is a capacitive fingerprint sensor. It can be understood that the fingerprint sensor 155 can be provided with a sensing circuit for fingerprint acquisition and analog signal generation. The fingerprint sensor 155 can also be protected by a single chip and filled with a gel. The fingerprint sensor 155 can also adopt other devices that can sense and recognize the fingerprint of the user, and details are not described herein.
  • the control component 153 can employ a control chip or a control circuit that can implement a control function, such as an Application Specific Integrated Circuits (ASIC).
  • ASIC Application Specific Integrated Circuits
  • the electrical connection of the control element 153 to the flexible circuit board 151 can employ any suitable prior art.
  • the control element 155 in the present invention may be electrically connected to the flexible circuit board 151 by wire bonding, through-silicon via structure or flip-chip connection, and the invention is not limited thereto.
  • the fingerprint recognition device in the present invention has a fingerprint sensor 155 embedded in the panel 10, and the surface of the panel for touch is flat without opening, so that the mobile terminal having the fingerprint recognition device 10 has complete and good performance.
  • the appearance and strength can not only avoid the opening of the panel of the mobile terminal, but also reduce the strength of the panel and ensure the complete appearance of the mobile terminal.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Telephone Set Structure (AREA)

Abstract

Un appareil de reconnaissance d'empreinte digitale comprend un écran (10) et un module de reconnaissance d'empreinte digitale (15). Le module de reconnaissance d'empreinte digitale (15) comprend une carte à circuits imprimés flexible (151), un élément de commande (153) et un capteur d'empreinte digitale (155). L'élément de commande (153) et le capteur d'empreinte digitale (155) sont disposés de manière adjacente sur la carte à circuits imprimés flexible (151). L'écran (10) comporte une première surface (11) et une seconde surface (12) à l'opposé de la première. Une fente de retenue (13) est formée sur la seconde surface (12). La fente de retenue (13) comprend une première fente (131) et une seconde fente (132) reliée à la première d'une manière permettant la communication. La direction d'extension de la première fente (131) est parallèle à la seconde surface (12). La seconde fente (132) s'étend vers la seconde surface (12) et forme sur cette dernière un espace (133) pénétrant dans la seconde surface (12). Le capteur d'empreinte digitale (155) est logé et agencé dans la première fente (131) à proximité d'une position de commande tactile sur la première surface (11). L'élément de commande (153) est monté sur la seconde surface (12), ou une partie de la carte à circuits imprimés flexible (151) sur laquelle l'élément de commande (153) est agencé est logée dans la première fente (131).
PCT/CN2016/086043 2015-06-18 2016-06-16 Appareil de reconnaissance d'empreinte digitale, écran tactile et terminal mobile WO2016202278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510346392.1 2015-06-18
CN201510346392.1A CN104951766B (zh) 2015-06-18 2015-06-18 指纹识别装置、触摸屏及移动终端

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WO2016202278A1 true WO2016202278A1 (fr) 2016-12-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109460695A (zh) * 2017-09-06 2019-03-12 蓝思科技（长沙）有限公司 指纹传感装置及智能终端

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104951766B (zh) * 2015-06-18 2017-03-29 广东欧珀移动通信有限公司 指纹识别装置、触摸屏及移动终端
CN106778542A (zh) * 2016-11-29 2017-05-31 惠州Tcl移动通信有限公司 一种基于移动终端的嵌入式指纹识别装置及其制造方法
CN106991383B (zh) * 2017-03-13 2019-09-06 Oppo广东移动通信有限公司 指纹模组、显示屏和移动终端

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EP1197911A2 (fr) * 2000-10-13 2002-04-17 Fujitsu Limited Appareil pour la reconnaissance d'images et unité de traitement de données utilisant un tel appareil
CN104156105A (zh) * 2014-07-18 2014-11-19 赣州市德普特科技有限公司 指纹识别触控屏
CN104407751A (zh) * 2014-10-27 2015-03-11 深圳市汇顶科技股份有限公司 一种移动终端
CN104700083A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别装置及其制造方法、触摸屏、终端设备
CN104700084A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别装置、设有该装置的触摸屏及终端设备
CN104700079A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别模组及基于指纹识别的触控屏
CN104951766A (zh) * 2015-06-18 2015-09-30 广东欧珀移动通信有限公司 指纹识别装置、触摸屏及移动终端

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Publication number Priority date Publication date Assignee Title
EP1197911A2 (fr) * 2000-10-13 2002-04-17 Fujitsu Limited Appareil pour la reconnaissance d'images et unité de traitement de données utilisant un tel appareil
CN104156105A (zh) * 2014-07-18 2014-11-19 赣州市德普特科技有限公司 指纹识别触控屏
CN104407751A (zh) * 2014-10-27 2015-03-11 深圳市汇顶科技股份有限公司 一种移动终端
CN104700083A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别装置及其制造方法、触摸屏、终端设备
CN104700084A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别装置、设有该装置的触摸屏及终端设备
CN104700079A (zh) * 2015-03-06 2015-06-10 南昌欧菲生物识别技术有限公司 指纹识别模组及基于指纹识别的触控屏
CN104951766A (zh) * 2015-06-18 2015-09-30 广东欧珀移动通信有限公司 指纹识别装置、触摸屏及移动终端

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109460695A (zh) * 2017-09-06 2019-03-12 蓝思科技（长沙）有限公司 指纹传感装置及智能终端

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