WO2018205867A1 - 光学指纹识别组件、显示装置和移动终端 - Google Patents

光学指纹识别组件、显示装置和移动终端 Download PDF

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Publication number
WO2018205867A1
WO2018205867A1 PCT/CN2018/085214 CN2018085214W WO2018205867A1 WO 2018205867 A1 WO2018205867 A1 WO 2018205867A1 CN 2018085214 W CN2018085214 W CN 2018085214W WO 2018205867 A1 WO2018205867 A1 WO 2018205867A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint
light source
optical
fingerprint recognition
module
Prior art date
Application number
PCT/CN2018/085214
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English (en)
French (fr)
Inventor
杨乐
张海平
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP18798690.6A priority Critical patent/EP3605387B1/en
Publication of WO2018205867A1 publication Critical patent/WO2018205867A1/zh
Priority to US16/671,848 priority patent/US20200065551A1/en

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    • 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
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • 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
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

Definitions

  • the present invention relates to the field of electronic devices, and in particular, to an optical fingerprint recognition component, a display device, and a mobile terminal.
  • the existing fingerprint recognition devices are mainly capacitive fingerprint recognition devices, optical fingerprint recognition devices and thermal fingerprint recognition devices, and optical fingerprint recognition.
  • the device has become the most widely used fingerprint recognition device due to its reliable use and low price.
  • the optical fingerprint recognition device of the mobile terminal application in the prior art generally uses the organic light-emitting layer of the display screen as the illumination light for fingerprint recognition, and the inventors have found that the display screen provided with the optical fingerprint recognition device frequently needs to perform fingerprint unlocking frequently. Light-emitting, its service life is relatively short, which is not conducive to the use of mobile terminals.
  • the application provides an optical fingerprint recognition component, a display device and a mobile terminal capable of independently emitting light.
  • the present application provides an optical fingerprint recognition component, including a light source and a fingerprint module, the fingerprint module including a prism, an image sensor and a fingerprint controller packaged together, the prism having a fingerprint for Pressing the fingerprint contact surface, the light source is disposed outside the fingerprint module, and the light emitted by the light source is irradiated onto the fingerprint contact surface of the fingerprint to be recognized and totally reflected with the fingerprint to be recognized.
  • the totally reflected light is incident on the image sensor through the prism, the image sensor acquires a fingerprint image according to the totally reflected light, and the fingerprint controller identifies the fingerprint image sent by the image sensor.
  • the application also provides a display device including a display screen and the above optical fingerprint recognition component.
  • the application also provides a mobile terminal, including the above display device.
  • the optical fingerprint identification component provided by the present application has a light source and a fingerprint module, that is, the optical fingerprint recognition component can independently emit light, and when the optical fingerprint identification component is applied to a display device or a mobile terminal, it can self-illuminate without using other devices. Glow light.
  • the display device and the mobile terminal provided by the present application improve the service life of the display screen by applying the above optical fingerprint recognition component.
  • FIG. 1 is a schematic diagram of an optical fingerprint identification component according to Embodiment 1 of the present application.
  • FIG. 2 is a light source arrangement diagram of the optical fingerprint recognition assembly shown in FIG. 1;
  • FIG. 3 is another light source arrangement diagram of the optical fingerprint recognition assembly shown in FIG. 1;
  • FIG. 4 is a schematic view showing the addition of a flexible circuit board to the optical fingerprint recognition component shown in FIG. 1;
  • FIG. 5 is a schematic diagram of a mobile terminal according to Embodiment 2 of the present application.
  • Fig. 6 is a cross-sectional view showing the I-I of the mobile terminal shown in Fig. 5.
  • the mobile terminal 300 involved in the embodiment of the present application may be any device having communication and storage functions, such as a tablet computer, a mobile phone, an e-reader, a remote controller, a personal computer (PC), a notebook computer, an in-vehicle device, and a network.
  • a smart device with network capabilities such as TVs and wearable devices.
  • FIG. 1 is an optical fingerprint identification component 100 according to the first embodiment of the present application.
  • the optical fingerprint identification component 100 includes a light source 1 and a fingerprint module 2 .
  • the light source 1 is used as the illumination for fingerprint recognition, and the light source 1 cooperates with the fingerprint module 2 to recognize the fingerprint.
  • the specific process is: the light emitted by the light source 1 is irradiated onto the fingerprint contact surface 21a of the fingerprint to be recognized and totally reflected with the fingerprint to be recognized.
  • the totally reflected light is incident on the image sensor 22 via the prism 21, the image sensor 22 acquires a fingerprint image based on the totally reflected light, and the fingerprint controller 23 recognizes the fingerprint image transmitted by the image sensor 22.
  • the fingerprint module 2 includes a prism 21, an image sensor 22, and a fingerprint controller 23 that are packaged together.
  • the prism 21, the image sensor 22, and the fingerprint controller 23 in the fingerprint module 2 are packaged together, so that the fingerprint module 2 is integrally formed in a block shape, wherein the fingerprint module 2 includes the upper surface 2a and the lower surface disposed opposite each other.
  • the surface 2b is connected to the side surface 2c between the upper surface 2a and the lower surface 2b.
  • the distance between the upper surface 2a and the lower surface 2b of the fingerprint module 2 is defined as the height of the fingerprint module 2
  • the fingerprint pattern is The distance between the two most distant points between the sides 2c of the group 2 is defined as the width of the fingerprint module 2.
  • the prism 21, image sensor 22 and fingerprint controller 23 are packaged together by EMC (epoxy molding compound) plastic.
  • EMC epoxy molding compound
  • the prism 21 has a fingerprint contact surface 21a for fingerprint pressing and an incident surface 21b for incident total reflection light.
  • the fingerprint contact surface 21a is the upper surface 2a of the fingerprint module 2, and the user can perform fingerprint recognition by pressing the fingerprint on the fingerprint contact surface 21a of the prism 21.
  • the image sensor 22 and the fingerprint controller 23 are located below the prism 21, that is, the image sensor 22 and the fingerprint controller 23 are close to the incident surface 21b of the fingerprint module 2, so that the image sensor 22 acquires the light reflected on the incident surface 21b of the prism 21.
  • the optical signal is converted into an electrical signal and transmitted to the fingerprint controller 23 for processing. That is, the image sensor 22 and the fingerprint controller 23 form the lower surface 2b of the fingerprint module 2.
  • the lower surface 2b of the fingerprint module is substantially opposite to the upper surface 2a.
  • the light source 1 is disposed outside the fingerprint module 2 , and the light source 1 can be irradiated to the fingerprint contact surface 21 a of the prism 21 as light for fingerprint recognition, so that the optical fingerprint recognition component 100 can independently emit light.
  • the optical fingerprinting component 100 When applied to a display device or mobile terminal, the optical fingerprinting component 100 will self-illuminate without the need for illumination by other means.
  • the incident angle of the light source 1 is 0-8 degrees. Applicant changes the incident angle of the light source 1 and finds that the incident angle of the light source 1 is 0-8 degrees, which can ensure that the light of the light source 1 and the fingerprint contact surface 21a pressing the fingerprint to be recognized have better reflection, so that the image
  • the sensor 22 can obtain a more accurate fingerprint image and improve the accuracy of fingerprint recognition.
  • the light source 1 is disposed around the fingerprint module 2. Specifically, the light source 1 is disposed around the side surface 2c of the fingerprint module 2 to reduce the height of the optical fingerprint recognition component 100, so that when the optical fingerprint recognition component 100 is applied to a display device or a mobile terminal, the display device or the mobile terminal is light and thin.
  • the light source 1 comprises a plurality of LED lights, and the plurality of LED lights are evenly spaced around the fingerprint module 2.
  • the light source 1 may further include a plurality of infrared light sources 1 , and the plurality of infrared light sources 1 are evenly spaced around the fingerprint module 2 .
  • the entire cross section of the fingerprint module 2 is substantially strip-shaped, that is, the cross section of the fingerprint module 2 includes two oppositely disposed long sides L1 and two oppositely disposed short sides D1.
  • the two short sides D1 are respectively connected between the two long sides L1.
  • the light source 1 comprises six LED lights or six infrared light sources 1, wherein each long side L1 is provided with two LED lights or two infrared light sources 1, and each short side D1 is provided with an LED light or an infrared light source 1, the light source 1
  • the arrangement can ensure that the fingerprint contact surface 21a has sufficient light to be illuminated, which facilitates the identification of the fingerprint.
  • the entire cross section of the fingerprint module 2 may also be circular.
  • the light source 1 includes four LED lights or four infrared light sources 1 uniformly arranged on the side surface 2c of the fingerprint module 2. The arrangement of the light source 1 can ensure sufficient light of the fingerprint contact surface 21a to facilitate fingerprint recognition.
  • the optical fingerprint identification component 100 further includes a substrate 4 , and the light source 1 and the fingerprint module 2 are collectively packaged on the substrate 4 .
  • the substrate 4 is a rigid board, so as to better support the light source 1 and the fingerprint module 2.
  • the plurality of LED lights or the plurality of infrared light sources 1 are disposed around the fingerprint module 2, and the light source 1 is encapsulated on the substrate 4 by EMC (epoxy molding compound) plastic, that is, the light source 1 and the fingerprint module 2 are packaged together on the substrate 4.
  • EMC epoxy molding compound
  • the optical fingerprinting component 100 further includes a flexible circuit board 5 and a substrate 4 disposed on the flexible circuit board 5.
  • the fingerprint module 2 is packaged on the substrate 4, and the light source 1 is disposed on the substrate On the flexible circuit board 5. That is, the light source 1 and the fingerprint module 2 can be fixed on the substrate 4 without being packaged together.
  • the mobile terminal 300 includes a display device 200.
  • the display device 200 includes a display screen 101 and an optical fingerprint recognition component 100.
  • the optical fingerprint identification component 100 please refer to the first embodiment of the present application.
  • the mobile terminal 300 improves the service life of the display screen 101 by using the optical fingerprint recognition component 100 as described above without using the display screen 101 to emit light.
  • the display screen 101 includes a display surface 1011 and a back surface 1012 which are oppositely disposed.
  • the display surface 1011 has a display area 1011a for displaying an image and a non-display area 1011b for displaying an image.
  • the back surface 1012 is The back surface 1012 is provided with a light-shielding material to form a light-shielding surface, and the back surface 1012 may be substantially equal to the light-shielding layer. It can be understood that the light shielding material is foam.
  • the back surface 1012 does not see the trace of the display screen 101 when the display area 1011a does not display the image by blocking the light, thereby further improving the display performance of the display device 200.
  • the back surface 1012 defines a recess 1012a, and the optical fingerprinting assembly 100 is received in the recess 1012a on the back side.
  • the optical fingerprinting component 100 is received in the recess 1012a by providing the recess 1012a on the back surface 1012, that is, the optical fingerprinting component 100 is housed inside the display device 200 and the mobile terminal 300, and does not occupy the display 101.
  • the space of the face 1011 is displayed.
  • a recess 1012a is disposed in the light shielding layer 1012a, that is, the display screen 101 has no light shielding material corresponding to the recess 1012a, so that the optical fingerprinting component 100 emits light through the display screen 101.
  • the light source 1 and the fingerprint module 2 are housed together in the recess 1012a.
  • the shape of the groove 1012a is substantially similar to the shape of the optical fingerprinting device. That is, when the cross section of the optical fingerprinting component 100 is elongated, the shape of the groove 1012a is also elongated; when the cross section of the optical fingerprinting component 100 is circular, the shape of the groove 1012a is also circular. .
  • the orthographic projection of the recess 1012a on the display screen 101 is located in the display area 1011a of the display screen 101 for displaying an image.
  • the orthographic projection of the groove 1012a on the display screen 101 to be located in the display area 1011a, that is, the optical fingerprint recognition component 100 does not occupy the display device 200 and the non-display area 1011b of the mobile terminal 300, the screen occupation of the display device 200 and the mobile terminal 300 is improved. ratio.
  • the recess 1012a can also be opened at other locations, such as the orthographic projection of the recess 1012a on the display screen 101 in the non-display area 1011b.
  • the optical fingerprint recognition component 100 When the mobile terminal 300 is used, the optical fingerprint recognition component 100 first needs to be installed in the recess 1012a of the display screen 101; then the fingerprint is pressed by the position of the display area 1011a facing the recess 1012a (the fingerprint is defined as the fingerprint to be recognized)
  • the light source 1 in the optical fingerprint recognition component 100 senses the pressing of the fingerprint to emit light to the fingerprint contact surface 21a of the prism 21 up to the display screen 101 directly above, and the optical fiber emitted by the light source 1 and the fingerprint to be recognized are totally reflected.
  • the totally reflected light is incident on the image sensor 22 via the prism 21, the image sensor 22 acquires a fingerprint image based on the totally reflected light, and the fingerprint controller 23 recognizes the fingerprint image transmitted by the image sensor 22, thereby identifying the fingerprint.

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Abstract

本申请公开提供了一种光学指纹识别组件，包括光源和指纹模组，指纹模组包括封装在一起的棱镜、图像传感器和指纹控制器，棱镜具有用于指纹按压的指纹接触面，光源设置于指纹模组的外部，光源发出的光线照射至压有待识别指纹的指纹接触面上并与待识别指纹发生全反射，全反射的光线经棱镜入射至图像传感器，图像传感器根据全反射的光线获取指纹图像，指纹控制器识别图像传感器发送的指纹图像。本申请提供的光学指纹识别组件具有光源和指纹模组，即该光学指纹识别组件能够独立发光，当该光学指纹识别组件应用至显示装置或移动终端上时，其会自发光而无需借助其它器件进行发光。本申请还提供了一种显示装置和移动终端。

Description

光学指纹识别组件、显示装置和移动终端 技术领域
本发明涉及一种电子设备领域，尤其涉及一种光学指纹识别组件、显示装置和移动终端。
背景技术
随着科技的发展，目前手机、平板电脑，主要通过指纹来解锁，现有的指纹识别器件主要为电容式指纹识别器件、光学式指纹识别器件和热感式指纹识别器件，而光学式指纹识别器件由于使用可靠、价格便宜等因素成为应用最广的指纹识别器件。
现有技术中的移动终端应用的光学式指纹识别器件一般利用显示屏的有机发光层作为照射指纹识别用光，发明人发现设置有光学式指纹识别器件的显示屏由于经常需要进行指纹解锁而频繁发光，其使用寿命比较短，不利于移动终端的使用。
发明内容
本申请提供一种能够独立发光的光学指纹识别组件、显示装置和移动终端。
为了解决上述技术问题，本申请提供了一种光学指纹识别组件，包括光源和指纹模组，所述指纹模组包括封装在一起的棱镜、图像传感器和指纹控制器，所述棱镜具有用于指纹按压的指纹接触面，所述光源设置于所述指纹模组的外部，所述光源发出的光线照射至压有待识别指纹的所述指纹接触面上并与所述待识别指纹发生全反射，所述全反射的光线经所述棱镜入射至所述图像传感器，所述图像传感器根据所述全反射的光线获取指纹图像，所述指纹控制器识别所述图像传感器发送的所述指纹图像。
本申请还提供一种显示装置，包括显示屏和上述光学指纹识别组件。
本申请还提供一种移动终端，包括上述显示装置。
本申请提供的光学指纹识别组件具有光源和指纹模组，即该光学指纹识别组件能够独立发光，当该光学指纹识别组件应用至显示装置或移动终端上时， 其会自发光而无需借助其它器件进行发光。
本申请提供的显示装置和移动终端由于应用了上述光学指纹识别组件而提高了显示屏的使用寿命。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例一提供的一种光学指纹识别组件的示意图；
图2是图1所示的光学指纹识别组件中一种光源排布图；
图3是图1所示的光学指纹识别组件中另一种光源排布图；
图4是图1所示的光学指纹识别组件增设柔性电路板的示意图；
图5是本申请实施例二提供的一种移动终端的示意图；
图6是图5所示的移动终端的I-I截面示意图。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述。
本申请实施例涉及的移动终端300可以是任何具备通信和存储功能的设备，例如：平板电脑、手机、电子阅读器、遥控器、个人计算机(Personal Computer，PC)、笔记本电脑、车载设备、网络电视、可穿戴设备等具有网络功能的智能设备。
请参照图1，为申请实施例一提供的一种光学指纹识别组件100，该光学指纹识别组件100包括光源1和指纹模组2。光源1作为照射指纹识别用光，光源1与指纹模组2配合以识别指纹，具体过程为：光源1发出的光线照射至压有待识别指纹的指纹接触面21a上并与待识别指纹发生全反射，全反射的光线经棱镜21入射至图像传感器22，图像传感器22根据全反射的光线获取指纹图像，指纹控制器23识别图像传感器22发送的指纹图像。
在本实施例中，请参照图1，指纹模组2包括封装在一起的棱镜21、图像传感器22和指纹控制器23。具体的，指纹模组2中的棱镜21、图像传感器22和指纹控制器23由于封装在一起，故指纹模组2整体呈块状，其中指纹模组2包括相背设置的上表面2a和下表面2b，连接于上表面2a和下表面2b之间的侧面2c，此处，将指纹模组2的上表面2a和下表面2b之间的距离定义为指纹模组2的高度，将指纹模组2的侧面2c之间相对最远的两点之间的距离定义为指纹模组2的宽度。
可以理解的，棱镜21、图像传感器22和指纹控制器23通过EMC(环氧塑封料)塑料封装在一起。其中，指纹模组2的封装工艺不会影响棱镜21等光学器件的正常工作。
具体的，棱镜21具有用于指纹按压的指纹接触面21a和用于入射全反射光线的入射面21b。其中，指纹接触面21a即指纹模组2的上表面2a，用户可以通过将指纹按压于棱镜21的指纹接触面21a上来进行指纹识别。图像传感器22和指纹控制器23位于棱镜21的下方，即图像传感器22和指纹控制器23接近指纹模组2的入射面21b，以便于图像传感器22获取反射至棱镜21的入射面21b上的光线，从而将光信号转换为电信号传递给指纹控制器23进行处理。即图像传感器22和指纹控制器23形成指纹模组2的下表面2b，可以理解的，指纹模组的下表面2b实质为与上表面2a相互背离的一面。
具体的，请参照图1，光源1设置于指纹模组2的外部，光源1可以照射到棱镜21的指纹接触面21a，作为指纹识别用光，以使得光学指纹识别组件100能够独立发光，当该光学指纹识别组件100应用至显示装置或移动终端上时，其会自发光而无需借助其它器件进行发光。
可以理解的，光源1的入射角为0～8度。申请人经过变换光源1的各个入射角，发现光源1的入射角处于0～8度，该角度能够保证光源1的光线与压有待识别指纹的指纹接触面21a具有较佳的反射，以使得图像传感器22能够获得较准确的指纹图像，提高指纹识别的精度。
为了更进一步的改进，请参照图1，光源1环绕指纹模组2设置。具体的，光源1围绕指纹模组2的侧面2c设置，以减少光学指纹识别组件100的高度，使得光学指纹识别组件100应用于显示装置或移动终端时，利于显示装置或移动终端的轻薄化。
可以理解的，光源1包括多个LED灯，多个LED灯环绕指纹模组2均匀间隔排列。或者，光源1还可以为包括多个红外光源1，多个红外光源1环绕指纹模组2均匀间隔排列。
一种实施例中，请参照图2，指纹模组2整体的横截面基本呈条状，即指纹模组2的横截面包括两条相对设置的长边L1和两条相对设置的短边D1，两条短边D1分别连接于两条长边L1之间。光源1包括六个LED灯或六个红外光源1，其中每一条长边L1设置两个LED灯或两个红外光源1，每一条短边D1设置一个LED灯或一个红外光源1，该光源1的排布能够保证指纹接触面21a有充足的光线照射到，利于指纹的识别。
另一种实施例中，请参照图3，指纹模组2整体的横截面还可以呈圆形。光源1包括四个LED灯或四个红外光源1均匀排列于指纹模组2的侧面2c，该光源1的排布能够保证指纹接触面21a有充足的光线照射到，利于指纹的识别。
进一步的，请参照图1，光学指纹识别组件100还包括基板4，光源1与指纹模组2共同封装于基板4上。具体的，基板4为硬性板，以便于较佳的为光源1和指纹模组2提供承载。其中，多个LED灯或者多个红外线光源1围绕指纹模组2设置，并且光源1通过EMC(环氧塑封料)塑料封装在基板4上，即光源1和指纹模组2一同封装于基板4上，该光学指纹识别组件100使用时，只需将整个基板4安装在显示装置或移动终端的对应位置即可。当然，在其他实施例中，请参照图4，光学指纹识别组件100还包括柔性电路板5和设置于柔性电路板5上的基板4，指纹模组2封装于基板4上，光源1设置于柔性电路板5上。即光源1和指纹模组2无需一同封装于基板4上亦可实现光源1的固定。
请参照图5，为本申请实施例二提供的一种移动终端300，移动终端300包括显示装置200，显示装置200包括显示屏101和光学指纹识别组件100。其中，光学指纹识别组件100请具体参照本申请实施例一，该移动终端300通过由于应用了上述光学指纹识别组件100而无需通过显示屏101发光，从而提高了显示屏101的使用寿命。
本实施例中，请参照图5，显示屏101包括相对设置的显示面1011和背面1012，显示面1011具有用于显示图像的显示区域1011a和不显示图像的非显示区域1011b，背面1012为与显示面1011相背设置的一面，背面1012上设置有遮光材料形成遮光面，由于遮光层较薄，故此处背面1012可以大致等于遮光层。 可以理解的，遮光材料为泡棉。背面1012通过遮挡光线使得显示区域1011a不进行图像的显示时亦不会看到显示屏101的走线，从而进一步提高显示装置200的显示性能。
为了更进一步的改进，请参照图6，背面1012开设凹槽1012a，光学指纹识别组件100容置于背面的凹槽1012a中。通过在背面1012设置凹槽1012a，将光学指纹识别组件100容置于凹槽1012a中，即将光学指纹识别组件100容置于显示装置200和移动终端300的内部，不会占据显示屏101的的显示面1011的空间。
具体的，在遮光层1012a设置出一个凹槽1012a，即显示屏101对应该凹槽1012a处并无遮光材料，以便于光学指纹识别组件100光线透出显示屏101。光源1与指纹模组2共同收容于凹槽1012a中。其中，凹槽1012a的形状与光学指纹识别器件的形状大致类似。即当光学指纹识别组件100的横截面为长条形时，凹槽1012a的形状亦为长条形；当光学指纹识别组件100的横截面为圆形时，凹槽1012a的形状亦为圆形。
进一步的，请参照图5和图6，凹槽1012a于显示屏101上的正投影位于显示屏101上用于显示图像的显示区域1011a内。通过使得凹槽1012a在显示屏101上的正投影位于显示区域1011a，即光学指纹识别组件100不占据显示装置200和移动终端300的非显示区域1011b，提高显示装置200和移动终端300的屏占比。当然，在其它实施例中，凹槽1012a还可以开设于其它位置，比如凹槽1012a在显示屏101上的正投影位于非显示区域1011b。
该移动终端300使用时，首先需要将光学指纹识别组件100安装于显示屏101的凹槽1012a中；接着通过在显示区域1011a之正对凹槽1012a的位置按压指纹(该指纹定义为待识别指纹)，光学指纹识别组件100中的光源1感应到指纹的按压而发射光线至棱镜21的指纹接触面21a直至正上方的显示屏101上，并且光源1发出的光纤与待识别指纹发生全反射，全反射的光线经棱镜21入射至图像传感器22，图像传感器22根据全反射的光线获取指纹图像，指纹控制器23识别图像传感器22发送的指纹图像，从而对指纹进行识别。
以上是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (19)

  1. 一种光学指纹识别组件，其特征在于，包括光源和指纹模组，所述指纹模组包括封装在一起的棱镜、图像传感器和指纹控制器，所述棱镜具有用于指纹按压的指纹接触面，所述光源设置于所述指纹模组的外部，所述光源发出的光线照射至压有待识别指纹的所述指纹接触面上并与所述待识别指纹发生全反射，所述全反射的光线经所述棱镜入射至所述图像传感器，所述图像传感器根据所述全反射的光线获取指纹图像，所述指纹控制器识别所述图像传感器发送的所述指纹图像。
  2. 根据权利要求1所述的光学指纹识别组件，其特征在于，所述光源的入射角为0～8度。
  3. 根据权利要求1或2所述的光学指纹识别组件，其特征在于，所述光源环绕所述指纹模组设置。
  4. 根据权利要求1～3任意一项所述的光学指纹识别组件，其特征在于，所述光源包括多个LED灯，所述多个LED灯环绕所述指纹模组均匀间隔排列。
  5. 根据权利要求4所述的光学指纹识别组件，其特征在于，所述指纹模组的横截面包括两条相对设置的长边和两条相对设置的短边，两条所述短边分别连接于两条所述长边之间。
  6. 根据权利要求5所述的光学指纹识别组件，其特征在于，所述光源包括六个LED灯，每一条所述长边设置两个所述LED灯，每一条所述短边设置一个所述LED灯。
  7. 根据权利要求4所述的光学指纹识别组件，其特征在于，所述指纹模组的横截面为圆形。
  8. 根据权利要求7所述的光学指纹识别组件，其特征在于，所述光源包括四个LED灯，所述四个LED灯具云排列于所述指纹模组的侧面。
  9. 根据权利要求1～3任意一项所述的光学指纹识别组件，其特征在于，所述光源包括多个红外光源，所述多个红外光源环绕所述指纹模组均匀间隔排列。
  10. 根据权利要求9所述的光学指纹识别组件，其特征在于，所述指纹模 组的横截面包括两条相对设置的长边和两条相对设置的短边，两条所述短边分别连接于两条所述长边之间。
  11. 根据权利要求10所述的光学指纹识别组件，其特征在于，所述光源包括六个红外光源，每一条所述长边设置两个所述红外光源，每一条所述短边设置一个所述红外光源。12.根据权利要求9所述的光学指纹识别组件，其特征在于，所述指纹模组的横截面为圆形。
  12. 根据权利要求1～12任意一项所述的光学指纹识别组件，其特征在于，所述光学指纹识别组件还包括基板，所述光源与所述指纹模组共同封装于所述基板上。
  13. 根据权利要求1～13任意一项所述的光学指纹识别组件，其特征在于，所述光学指纹识别组件还包括柔性电路板和设置于所述柔性电路板上的基板，所述指纹模组封装于所述基板上，所述光源设置于所述柔性电路板上。
  14. 根据权利要求1～14所述的光学识别组件，其特征在于，所述棱镜、图像传感器和指纹控制器通过环氧塑封料塑料封装形成所述指纹识别模组。
  15. 根据权利要求1～15所述的光学识别组件，其特征在于，所述指纹模组整体呈块状。
  16. 一种显示装置，其特征在于，包括显示屏和如权利要求1～16任意一项所述的光学指纹识别组件，所述光学指纹识别组件设置于所述显示屏。
  17. 根据权利要求17所述的显示装置，其特征在于，所述显示屏具有与所述显示屏相背设置的背面，所述背面具有凹槽，所述光学指纹识别组件容置于所述背面的凹槽中。
  18. 根据权利要求18所述的显示装置，其特征在于，所述凹槽于所述显示屏上的正投影位于所述显示屏上用于显示图像的显示区域内。
  19. 一种移动终端，其特征在于，包括如权利要求17～19任意一项所述的显示装置。
PCT/CN2018/085214 2017-05-12 2018-04-28 光学指纹识别组件、显示装置和移动终端 WO2018205867A1 (zh)

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