WO2020006976A1 - 指纹识别装置和终端 - Google Patents

指纹识别装置和终端 Download PDF

Info

Publication number
WO2020006976A1
WO2020006976A1 PCT/CN2018/118860 CN2018118860W WO2020006976A1 WO 2020006976 A1 WO2020006976 A1 WO 2020006976A1 CN 2018118860 W CN2018118860 W CN 2018118860W WO 2020006976 A1 WO2020006976 A1 WO 2020006976A1
Authority
WO
WIPO (PCT)
Prior art keywords
fingerprint
touch screen
light
component
lcd touch
Prior art date
Application number
PCT/CN2018/118860
Other languages
English (en)
French (fr)
Inventor
李可
Original Assignee
深圳市汇顶科技股份有限公司
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 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to CN201880002685.XA priority Critical patent/CN109643382A/zh
Publication of WO2020006976A1 publication Critical patent/WO2020006976A1/zh

Links

Images

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
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

Definitions

  • the present application relates to the field of biometric technology, and in particular, to a fingerprint recognition device and terminal.
  • the fingerprint recognition technology under the screen is a fingerprint recognition component that is provided under the Organic Light-Emitting Diode (OLED) screen and uses optical principles to obtain a user's fingerprint.
  • OLED Organic Light-Emitting Diode
  • liquid crystal display (Liquid Crystal Display) screens still occupy a large proportion. Since LCD touch screens are different from OLED touch screens, they do not have self-luminous characteristics, so a backlight is required to provide a light source for the screen; and in order to further increase the screen brightness, a prism film is used to adjust the angle of the light emitted by the light source, so that the processed light The light is emitted at the expected angle, and the light that has not reached the preset angle will be reflected back through the prism film to be reused, so that the light will not be lost to achieve the effect of increasing the screen brightness.
  • LCD touch screens are different from OLED touch screens, they do not have self-luminous characteristics, so a backlight is required to provide a light source for the screen; and in order to further increase the screen brightness, a prism film is used to adjust the angle of the light emitted by the light source, so that the processed light The light is emitted at the expected angle, and the light that has not reached the preset angle will be reflected back through
  • the prism film can interfere with the optical imaging light of the fingerprint, so that the fingerprint recognition method cannot achieve the expected effect.
  • the present application provides a fingerprint recognition device and terminal, which reflects light reflected or transmitted by an object touching the fingerprint recognition area to a fingerprint sensing component through a reflection component under the screen, so that the fingerprint sensing component obtains a fingerprint according to the acquired fingerprint imaging light. Image to achieve fingerprint recognition.
  • a first aspect of the present application provides a fingerprint identification device, which is applied to a terminal having a liquid crystal display LCD touch screen.
  • the fingerprint identification device includes a reflection component and a fingerprint sensing component;
  • the reflection component is disposed below a fingerprint recognition area of the LCD touch screen, and the fingerprint sensing component is disposed below the LCD touch screen and is located in a reflection area of the reflection component;
  • the first reflected light reflected by an object touching the fingerprint recognition area, or the transmitted light transmitted through the object and the fingerprint recognition area in sequence, is reflected by the reflection component to form a second reflected light, and is irradiated to the fingerprint Sensor assembly.
  • the fingerprint identification device further includes: a light processing component
  • the light processing component is disposed below the LCD touch screen, and is located between the reflection component and the fingerprint sensing component;
  • the second reflected light is irradiated onto the fingerprint sensing component after being processed by the light processing component.
  • the reflective component includes a reflective surface, and an angle between the reflective surface and the LCD touch screen is an acute angle.
  • the fingerprint sensing component includes an optical fingerprint sensor chip
  • the second reflected light is irradiated onto a light receiving surface of the optical fingerprint sensor chip, and the light receiving surface of the optical fingerprint sensor chip is perpendicular to the LCD touch screen.
  • the fingerprint sensing component includes an optical fingerprint sensor chip
  • the second reflected light is irradiated onto a light receiving surface of the optical fingerprint sensor chip, and an angle between the light receiving surface of the optical fingerprint sensor chip and the LCD touch screen is an obtuse angle.
  • the reflection component is a wedge-shaped glass
  • a first end surface of the wedge-shaped glass is arranged in parallel with the LCD touch screen
  • an angle between the reflection surface of the wedge-shaped glass and the LCD touch screen is an acute angle
  • the wedge The second end surface of the glass is disposed perpendicular to the LCD touch screen.
  • the reflection component is a wedge-shaped glass
  • a first end surface of the wedge-shaped glass is arranged in parallel with the LCD touch screen
  • an angle between the reflection surface of the wedge-shaped glass and the LCD touch screen is an acute angle
  • the wedge shape The angle between the second end surface of the glass and the normal line of the LCD touch screen is an acute angle.
  • the light processing component is disposed on a second end surface of the wedge-shaped glass.
  • the light processing component includes: a diaphragm and a lens;
  • the lens includes a plane and a curved surface
  • the stop is disposed on a plane of the lens, and the stop is disposed near the reflection component.
  • a second aspect of the present application provides a terminal, including: an LCD touch screen and the fingerprint recognition device described in the first aspect.
  • the application provides a fingerprint identification device and a terminal.
  • the fingerprint identification device is applied to a terminal with an LCD touch screen, and specifically includes: a reflection component and a fingerprint sensing component; wherein the reflection component is disposed below the fingerprint identification area of the LCD touch screen, and the fingerprint
  • the sensing component is disposed below the LCD touch screen and is located in the reflective area of the reflective component; the first reflected light reflected by the object touching the fingerprint recognition area, or the transmitted light that passes through the object and the fingerprint recognition area in turn and is reflected by the reflective component A second reflected light is formed and irradiated onto the fingerprint sensing component.
  • the reflected light reflected by an object touching the fingerprint recognition area is reflected to the fingerprint sensing component through the reflection component under the screen, so that the fingerprint sensing component obtains a fingerprint image according to the acquired fingerprint imaging light, thereby achieving the effect of identifying a fingerprint.
  • FIG. 1 is a schematic diagram of recognition technology under a fingerprint screen of an OLED touch screen in the prior art
  • FIG. 2 is a schematic diagram of applying a fingerprint recognition technology to an LCD touch screen in the prior art
  • FIG. 3 is a schematic diagram of an influence of a prism film in an LCD touch screen on an object's reflected light in the prior art
  • FIG. 4 is a schematic structural diagram of a fingerprint recognition device according to a first embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a fingerprint identification device according to a second embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a fingerprint recognition device according to a third embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a fingerprint identification device according to a fourth embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a fingerprint identification device according to a fifth embodiment of the present application.
  • FIG. 1 is a schematic diagram of an under-fingerprint identification technology of an OLED touch screen in the prior art.
  • a fingerprint sensing component 40 such as an optical fingerprint sensor chip 41 is provided below the OLED touch screen 10;
  • the fingerprint recognition area is covered by an object, such as when the finger covers it, the light emitted by the OLED touch screen 10 returns to the fingerprint sensor 40 through the reflection of the object.
  • the light reflected to the fingerprint sensor 40 is the imaging light of the fingerprint.
  • the component 40 performs fingerprint recognition according to the imaging light.
  • FIG. 2 is a schematic diagram of applying fingerprint recognition technology to LCD touch screens in the prior art.
  • LCD touch screens include The backlight plate 21, the prism film 22, and the processing layer 23; among them, the backlight plate 21 is used to provide a light source for the LCD touch screen, the prism film 22 can improve the screen brightness, and the processing layer 23 can further process the light processed by the prism film 22.
  • FIG. 3 is introduced to explain the effect of the prism film 22 on the reflected light of the object.
  • FIG. 3 is a schematic diagram of the influence of the prism film in the LCD touch screen on the reflected light of the object in the prior art
  • FIG. 3 is a diagram of the prism film in the ellipse in FIG.
  • the fingerprint identification technology in the prior art is applied to an LCD touch screen, that is, a fingerprint sensor component 40 is arranged below the LCD touch screen; when there is an object in the fingerprint recognition area of the LCD touch screen
  • a fingerprint sensor component 40 When blocked, when the light from the LCD touch screen returns to the fingerprint sensor 40 through the reflection of the object, it will be refracted and diverged by the prism film 22, resulting in the reflected light from the object being unable to reach or a small amount of light entering
  • the fingerprint sensing component 40 causes the field of view of the fingerprint to be missing and distorted on the fingerprint sensing component 40, resulting in the fingerprint sensing component 40 being unable to realize fingerprint recognition.
  • the reflected light at the center position of the object cannot enter the fingerprint sensing component 40 due to the influence of the prism film 22, resulting in a loss of the field of view at the central position of the fingerprint sensing component 40. For areas without light.
  • the LCD touch screen is not described in detail in this application, mainly to explain the effect of the prism film 22 in the LCD touch screen on the reflected light of the object.
  • the LCD touch screen in this application can be compared with the LCD in the prior art.
  • the structure of the touch screen is the same.
  • FIG. 4 is a schematic structural diagram of a fingerprint recognition device according to a first embodiment of the present application.
  • the fingerprint recognition device in the present application includes a reflection component 30 and a fingerprint sensing component 40.
  • the reflective component 30 is disposed below the fingerprint recognition area of the LCD touch screen 20.
  • the fingerprint recognition area of the LCD touch screen 20 in this embodiment may be set at the position where the Home key was originally set on the LCD touch screen 20; it is conceivable that the fingerprint recognition area of the LCD touch screen 20 may also be set on the LCD At other positions of the touch screen 20, or multiple fingerprint recognition areas of the LCD touch screen 20 can be set; when the fingerprint recognition area of the LCD touch screen 20 can be set to multiple, a fingerprint recognition area of each LCD touch screen 20 is set below Corresponding reflection component 30.
  • the reflection component 30 in this embodiment may be a reflector, a wedge-shaped glass, or another device having a reflective surface capable of reflecting light.
  • the mirror in FIG. 4 is taken as an example for description.
  • the fingerprint sensing component 40 is disposed below the LCD touch screen 20 and is located in a reflection area of the reflection component 30.
  • the first reflected light 101 reflected by the object touching the fingerprint recognition area will be emitted through the refraction of the prism film 22 in the LCD touch screen 20; in this embodiment, the external light source, such as natural light, will transmit the transmitted light of the object and the fingerprint recognition area in turn, and will also be emitted through the refraction of the prism film 22 in the LCD touch screen 20, which is not shown in FIG. 4 Out. It is conceivable that these first reflected light 101 or transmitted light will be irradiated on the fingerprint recognition component in the fingerprint recognition technology under the OLED touch screen.
  • the reflecting surface of the mirror can be received, and the first reflected light 101 or transmitted light is reflected to form a second reflected light 102.
  • the light amount of the second reflected light 102 received by the fingerprint sensing component 40 in this embodiment is greater than a preset light amount.
  • the preset light amount is a minimum light amount capable of identifying a fingerprint.
  • the fingerprint sensing component 40 in this embodiment includes an optical fingerprint sensor chip 41, a filter 42 and a chip carrier 43.
  • the optical fingerprint sensor chip 41 is disposed on the chip carrier 43, the filter 42 is disposed on the optical fingerprint sensor chip 41, and the light receiving surface of the optical fingerprint sensor chip 41 is disposed toward the reflection component 30.
  • the second reflected light 102 is processed by the filter 42 and then irradiated to the optical fingerprint sensor chip 41.
  • the filter 42 is used for filtering the stray light in the second reflected light 102.
  • the fingerprint sensing component 40 in order to enable the fingerprint sensing component 40 to obtain more second reflected light 102, and improve the fingerprint recognition efficiency and accuracy; in this embodiment, according to the refraction rule of the refracted light of the prism film 22 in the LCD touch screen 20 For example, if the first reflected light 101 or the transmitted light directly under the finger is refracted and diverged by the prism film 22, it is directed toward the finger.
  • the reflective component 30 may not be set directly under the fingerprint recognition area, such as A position that is left or right relative to the fingerprint recognition area enables the reflection component 30 to reflect the first reflected light 101 or transmitted light refracted by the prism film 22 into the fingerprint sensing component 40 more.
  • a fixed module corresponding to the reflection component 30 and the fingerprint sensing component 40 may be set in advance, and the reflection component 30 and the fingerprint transmission may be preset in the middle frame of the terminal.
  • the fingerprint recognition device is applied to a terminal having a liquid crystal display LCD touch screen, and specifically includes: a reflection component and a fingerprint sensing component; wherein the reflection component is disposed below the fingerprint recognition area of the LCD touch screen, and the fingerprint sensing component is disposed at The lower part of the LCD touch screen is located in the reflective area of the reflective component; the first reflected light reflected by an object touching the fingerprint recognition area, or the transmitted light transmitted through the object and the fingerprint recognition area in turn, is reflected by the reflective component to form a second reflected light , Shine on the fingerprint sensor.
  • the reflected light reflected by an object touching the fingerprint recognition area or the transmitted light that has passed through the object is reflected to the fingerprint sensing component through a reflecting component under the screen, so that the fingerprint sensing component acquires a fingerprint image according to the obtained fingerprint imaging light. And then achieve the effect of identifying fingerprints.
  • FIG. 5 is a schematic structural diagram of the fingerprint identification device in Embodiment 2 of the application. As shown in FIG. 5, in this embodiment, The fingerprint recognition device further includes: a light processing component 50.
  • the light processing component 50 is disposed below the LCD touch screen 20 and is located between the reflection component 30 and the fingerprint sensing component 40. Specifically, the light processing component 50 is disposed at the convergence point of the second reflected light 102, and the second reflection The light 102 is irradiated onto the fingerprint sensing component 40 after being processed by the light processing component 50.
  • the light processing component 50 in this embodiment includes a diaphragm 51 and a lens 52.
  • the lens 52 includes a flat surface and a curved surface.
  • the diaphragm 51 is disposed on the plane of the lens 52, and the diaphragm 51 is disposed near the reflective component 30. Since the light processing component 50 is disposed at the convergence point of the second reflected light 102 reflected by the reflection component 30, the second reflected light 102 reflected by the reflection component 30 in this embodiment is irradiated to the fingerprint transmission after passing through the diaphragm 51 and the lens.
  • Sense components 40 Specifically, the light processing component 50 converges the second reflected light 102, so that the second reflected light 102 of multiple angles originally reflected by the reflection component 30 is condensed in the light processing component 50 and completely irradiates the fingerprint transmission. Sense components 40.
  • the size of the diaphragm 51 and the focal length of the lens in the light processing component 50 can be set in advance so that the focal plane formed by the light processing component 50 is smaller than or equal to the optical fingerprint sensor chip 41 in the fingerprint sensing component 40.
  • the size of the receiving surface further enables the optical fingerprint sensor chip 41 to completely receive the second reflected light 102.
  • the shape and number of the lenses 52 are not specifically limited in this embodiment.
  • the lens 52 is a convex lens, and the number of convex lenses is one as an example.
  • the second reflected light 102 reflected by the reflection component 30 passes through the diaphragm 51 and the lens 52 to form an inverted real image. That is, an inverted real image of the light corresponding to the object can be presented on the optical fingerprint sensor chip 41.
  • the second reflected light 102 can be the reflected light corresponding to each fingerprint.
  • the inverted real image of light presented on the fingerprint sensor chip 41 can reflect the distribution of the fingerprint, and the optical fingerprint sensor chip 41 can recognize the fingerprint according to the received light.
  • the setting of the light processing component 50 in the terminal may be the same as that of the reflection component 30 and the fingerprint sensing component 40 in the above embodiment; for example, if a fixed module corresponding to the light processing component 50 is set in advance, the fixed mold The group can be integrated with the module of the fingerprint sensor assembly 40 or can be set separately.
  • the specific installation method refer to the description in the above embodiment, which is not limited herein.
  • the reflecting component 30 in this embodiment includes a reflecting surface.
  • the angle between the reflecting surface and the LCD touch screen 20 is an acute angle.
  • the acute angle may be 10 ° -40 °.
  • the reflective surfaces in the reflective component 30 are exemplarily disposed in FIG. 4 and FIG. 5 toward the right side; it is conceivable that the reflective surfaces may also be disposed toward the left side. Accordingly, the light processing component 50 and the fingerprint sensing component 40 Set in the reflection area on the left side of the reflection surface.
  • the fingerprint sensing component 40 in this embodiment includes an optical fingerprint sensor chip 41, and the second reflected light 102 is irradiated onto the light receiving surface of the optical fingerprint sensor chip 41.
  • the light receiving surface of the optical fingerprint sensor chip 41 and the LCD touch screen 20 vertical settings.
  • the reflection surface corresponding to the reflection component 30 and the LCD touch screen 20 are arranged at an acute angle, and according to the light transmission rule, in this embodiment, the light receiving surface of the optical fingerprint sensor chip 41 is vertically arranged with the LCD touch screen 20 to smoothly The imaging light processed by the light processing component 50 is received.
  • the light receiving surface of the fingerprint optical fingerprint sensor chip 41 may be tilted, that is, the optical fingerprint sensor chip
  • the angle between the light receiving surface of 41 and the LCD touch screen 20 is set at an obtuse angle to ensure that the optical fingerprint sensor chip 41 can perform accurate fingerprint recognition according to the received imaging light.
  • the obtuse angle in this embodiment may be 90 ° -130 °.
  • the fingerprint recognition device in this embodiment further includes: a light processing component, which is disposed below the LCD touch screen and located between the reflection component and the fingerprint sensing component; the second reflected light is irradiated to the fingerprint after being processed by the light processing component Sensor assembly.
  • the light processing component condenses the light reflected by the reflection component to realize imaging on the fingerprint sensing component, so that the fingerprint sensing component can realize fingerprint recognition.
  • the reflection component 30 in the present application may be a reflector, a wedge-shaped glass, or other devices with a reflective surface.
  • the following embodiments describe in detail when the reflection component 30 is a wedge-shaped glass.
  • the first possible setting is as follows:
  • FIG. 6 is a schematic structural diagram of a fingerprint recognition device according to a third embodiment of the present application.
  • the reflection component 30 in this embodiment is a wedge-shaped glass.
  • the first end face of the wedge-shaped glass is arranged parallel to the LCD touch screen 20, and the angle between the reflection surface of the wedge-shaped glass and the LCD touch screen 20 is an acute angle.
  • the reflection surface may be the third end surface of the wedge-shaped glass facing the wedge-shaped glass.
  • the acute angle may specifically be 10 ° -40 °; when the fingerprint recognition area is blocked by an object, the first reflected light 101 reflected by the object, or the transmitted light transmitted through the object may be transmitted through the first
  • the end surface is irradiated to the reflecting surface, and a specific setting position and setting angle of the reflecting surface may be the same as that of the reflecting mirror in the above embodiment.
  • the second end surface of the wedge-shaped glass is disposed perpendicular to the LCD touch screen 20, and the light processing component 50 is disposed on the second end surface of the wedge-shaped glass.
  • the second end surface of the wedge-shaped glass is a plane where the second reflected light 102 converges.
  • the diaphragm 51 in the light processing component 50 is disposed at the convergence point of the second reflected light 102 on the second end surface.
  • the center position of the diaphragm 51 overlaps the convergence point of the second reflected light 102; light processing
  • One side of the plane of the lens 52 in the module 50 is disposed in close contact with the diaphragm 51.
  • the center position of the diaphragm 51, the convergence point of the second reflected light 102, and the focal point of the lens 52 are on the same straight line.
  • the fingerprint sensing component 40 in this embodiment includes an optical fingerprint sensor chip 41.
  • the second reflected light 102 is irradiated onto the light receiving surface of the optical fingerprint sensor chip 41, and the light receiving surface of the optical fingerprint sensor chip 41 is disposed perpendicular to the LCD touch screen 20.
  • the fingerprint sensing component 40 in this embodiment further includes a filter 42 and a chip carrier 43.
  • the optical fingerprint sensor chip 41 is disposed on the chip carrier 43, the filter 42 is disposed on the optical fingerprint sensor chip 41, and the light receiving surface of the optical fingerprint sensor chip 41 is disposed toward the reflection component 30.
  • the second reflected light 102 is processed by the filter 42 and then irradiated to the optical fingerprint sensor chip 41.
  • the filter 42 is used for filtering the stray light in the second reflected light 102.
  • FIG. 6 exemplarily shows a setting manner of the wedge-shaped glass and the LCD touch screen 20, that is, the first end surface of the wedge-shaped glass and the lower surface of the LCD touch screen 20 are arranged in a laminating manner.
  • the wedge-shaped glass may be bonded by bonding.
  • the like are installed on the lower surface of the LCD touch screen 20.
  • the wedge-shaped glass in this embodiment may have a preset distance between the LCD touch screens 20.
  • the wedge-shaped glass may be set in the middle frame of the terminal.
  • the reflection component in the above embodiment. 30 and fingerprint sensor assembly 40 refer to the reflection component in the above embodiment.
  • the second possible setting is as follows:
  • FIG. 7 is a schematic structural diagram of a fingerprint recognition device according to a fourth embodiment of the present application.
  • the wedge-shaped glass may be the same as the above-mentioned first setting mode, that is, the first end surface of the wedge-shaped glass and the LCD touch screen 20 Set in parallel, the angle between the reflecting surface of the wedge-shaped glass and the LCD touch screen 20 is an acute angle.
  • the reflecting surface may be a plane of the third end surface of the wedge-shaped glass facing the inside of the wedge-shaped glass.
  • the acute angle is specifically It can be 10 ° -40 °; when the fingerprint recognition area is blocked by an object, the first reflected light 101 reflected by the object, or the transmitted light transmitted through the object can be irradiated to the reflective surface through the first end surface, and the reflective surface is specifically
  • the setting position and the setting angle may be the same as the way of setting the reflector in the above embodiment.
  • the fingerprint sensing component 40 in this embodiment includes an optical fingerprint sensor chip 41,
  • the light receiving surface is tilted.
  • the second reflected light 102 is irradiated onto the light receiving surface of the optical fingerprint sensor chip 41, and the angle between the light receiving surface of the optical fingerprint sensor chip 41 and the LCD touch screen 20 is an obtuse angle.
  • the obtuse angle in this embodiment may be 90 ° -130 °.
  • the fingerprint sensing component 40 in this embodiment further includes a filter 42 and a chip carrier 43.
  • a filter 42 and a chip carrier 43 For the manner of setting the filter 42 and the chip carrier 43, please refer to the related description in the first setting manner described above.
  • the third possible setting method is as follows:
  • FIG. 8 is a schematic structural diagram of a fingerprint recognition device according to Embodiment 5 in the present application. As shown in FIG. 8, in order to increase the imaging field of view of the optical fingerprint sensor chip 41 to prevent the light amount of the received light from being less than a preset light amount, and In order to avoid distortion of the fingerprint image obtained by the optical fingerprint sensor chip 41, the second end surface of the wedge-shaped glass may be tilted.
  • the first end face of the wedge-shaped glass is arranged in parallel with the LCD touch screen 20, and the angle between the reflection surface of the wedge-shaped glass and the LCD touch screen 20 is an acute angle.
  • the acute angle may be specifically 10 ° -40 °;
  • the angle between the second end surface and the normal line of the LCD touch screen 20 is an acute angle.
  • the acute angle may specifically be 0 ° -30 °.
  • the fingerprint sensing component 40 in this embodiment includes an optical fingerprint sensor chip 41, and the second reflected light 102 is irradiated onto the light receiving surface of the optical fingerprint sensor chip 41.
  • the light receiving surface of the optical fingerprint sensor chip 41 and the LCD touch screen 20 vertical settings.
  • the fingerprint sensing component 40 in this embodiment further includes a filter 42 and a chip carrier 43.
  • a filter 42 and a chip carrier 43 For the manner of setting the filter 42 and the chip carrier 43, please refer to the related description in the first setting manner described above.
  • the reflective component is a wedge-shaped glass
  • a feasible way to set the wedge-shaped glass and the fingerprint sensing component relatively can not only realize fingerprint recognition under the LCD touch screen, but also increase the imaging vision of the optical fingerprint sensor chip. Field, to prevent the received light quantity from being less than the preset light quantity, and to avoid distortion of the fingerprint image obtained by the optical fingerprint sensor chip, and further improve the recognition efficiency and quality of the fingerprint sensor chip.
  • the second aspect of the present application also includes a terminal, which includes an LCD touch screen and a fingerprint recognition device.
  • the fingerprint recognition device in the terminal may be similar to the implementation principle and technical effect of the fingerprint recognition device in the foregoing embodiment, and details are not described herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (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)

Abstract

本申请提供一种指纹识别装置和终端，该指纹识别装置应用于有液晶显示LCD触摸屏的终端，具体包括：反射组件和指纹传感组件；其中，反射组件设置在LCD触摸屏的指纹识别区域的下方，指纹传感组件设置在LCD触摸屏的下方，且位于反射组件的反射区域内；触摸指纹识别区域的物体反射的第一反射光，或者依次透过物体和指纹识别区域的透射光，经反射组件反射后形成第二反射光，照射至指纹传感组件上。本申请通过屏下的反射组件将触摸指纹识别区域的物体反射的反射光或者透过物体的透射光反射至指纹传感组件，使得指纹传感组件根据获取到的指纹成像光线获取指纹图像，进而达到识别指纹的效果。

Description

指纹识别装置和终端 技术领域
本申请涉及生物识别技术领域，尤其涉及一种指纹识别装置和终端。
背景技术
随着终端行业的高速发展，生物识别技术受到各大终端设备厂商的青睐。目前，屏下指纹识别技术是在有机发光二极管(Organic Light-Emitting Diode，OLED)屏幕的下方设置指纹识别组件，采用光学原理获取用户的指纹的识别技术。
而在目前的终端市场上，液晶显示(Liquid Crystal Display)屏幕仍占据较大的比例。由于LCD触摸屏与OLED触摸屏不同，其不具有自发光的特性，因此需要背光源为屏幕提供光源；且为了进一步提高屏幕亮度，采用棱镜膜对光源发出的光进行角度的调节，使得经过处理的光按照预期的角度射出，未达到预设角度的光会通过棱镜膜反射回去再次利用，使得光线不会损失，以达到增加屏幕亮度的效果。
在LCD触摸屏中应用屏下指纹识别方法时，由于棱镜膜会对指纹的光学成像光线产生干扰，使得指纹识别方法无法达到预期效果。
发明内容
本申请提供一种指纹识别装置和终端，通过屏下的反射组件将触摸指纹识别区域的物体反射或透射的光反射至指纹传感组件，使得指纹传感组件根据获取到的指纹成像光线获取指纹图像，进而达到识别指纹的效果。
本申请的第一方面提供一种指纹识别装置，应用于有液晶显示LCD触摸屏的终端，所述指纹识别装置包括：反射组件和指纹传感组件；其中，
所述反射组件设置在所述LCD触摸屏的指纹识别区域的下方，所述指纹传感组件设置在所述LCD触摸屏的下方，且位于所述反射组件的反射区域内；
触摸所述指纹识别区域的物体反射的第一反射光，或者依次透过所述物体和所述指纹识别区域的透射光，经所述反射组件反射后形成第二反射光， 照射至所述指纹传感组件上。
可选的，所述指纹识别装置还包括：光处理组件；
所述光处理组件设置在所述LCD触摸屏的下方，且位于所述反射组件和所述指纹传感组件的中间；
所述第二反射光，经所述光处理组件处理后照射至所述指纹传感组件上。
可选的，所述反射组件包括反射面，所述反射面与所述LCD触摸屏之间的角度为锐角。
可选的，所述指纹传感组件包括光学指纹传感器芯片；
所述第二反射光照射至所述光学指纹传感器芯片的光线接收面上，所述光学指纹传感器芯片的光线接收面与所述LCD触摸屏垂直。
可选的，所述指纹传感组件包括光学指纹传感器芯片；
所述第二反射光照射至所述光学指纹传感器芯片的光线接收面上，所述光学指纹传感器芯片的光线接收面与所述LCD触摸屏之间的角度为钝角。
可选的，所述反射组件为楔形玻璃，所述楔形玻璃的第一端面与所述LCD触摸屏平行设置，所述楔形玻璃的反射面与所述LCD触摸屏之间的角度为锐角，所述楔形玻璃的第二端面与所述LCD触摸屏垂直设置。
可选的，所述反射组件为楔形玻璃，所述楔形玻璃的第一端面与所述LCD触摸屏平行设置，所述楔形玻璃的反射面与所述LCD触摸屏之间的角度为锐角，所述楔形玻璃的第二端面与所述LCD触摸屏的法线的角度为锐角。
可选的，所述光处理组件设置在所述楔形玻璃的第二端面上。
可选的，所述光处理组件包括：光阑和透镜；
所述透镜包括一平面和一曲面；
所述光阑设置在所述透镜的平面上，且所述光阑靠近所述反射组件设置。
本申请的第二方面提供一种终端，包括：LCD触摸屏和上述第一方面所述的指纹识别装置。
本申请提供一种指纹识别装置和终端，该指纹识别装置应用于有LCD触摸屏的终端，具体包括：反射组件和指纹传感组件；其中，反射组件设置在LCD触摸屏的指纹识别区域的下方，指纹传感组件设置在LCD触摸屏的下方，且位于反射组件的反射区域内；触摸指纹识别区域的物体反射的第一反射光，或者依次透过物体和指纹识别区域的透射光，经反射组件反射后形成 第二反射光，照射至指纹传感组件上。本申请通过屏下的反射组件将触摸指纹识别区域的物体反射的反射光反射至指纹传感组件，使得指纹传感组件根据获取到的指纹成像光线获取指纹图像，进而达到识别指纹的效果
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，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为现有技术中OLED触摸屏的指纹屏下识别技术示意图；
图2为现有技术中将指纹屏下识别技术应用于LCD触摸屏的示意图；
图3为现有技术中LCD触摸屏中的棱镜膜对物体反射光的影响示意图；
图4为本申请中实施例一的指纹识别装置的结构示意图；
图5为本申请中实施例二的指纹识别装置的结构示意图；
图6为本申请中实施例三的指纹识别装置的结构示意图；
图7为本申请中实施例四的指纹识别装置的结构示意图；
图8为本申请中实施例五的指纹识别装置的结构示意图。
附图标记说明：
10-OLED触摸屏；
20-LCD触摸屏；
21-背光板；
22-棱镜膜；
23-处理层；
30-反射组件；
40-指纹传感组件；
41-光学指纹传感器芯片；
42-滤波片；
43-芯片载体；
50-光处理组件；
51-光阑；
52-透镜；
101-第一反射光；
102-第二反射光。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例，例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
图1为现有技术中OLED触摸屏的指纹屏下识别技术示意图，如图1所示，在OLED触摸屏10的下方设置有指纹传感组件40，如光学指纹传感器芯片41；当在OLED触摸屏10的指纹识别区域有物体遮挡时，如手指覆盖时，OLED触摸屏10发出的光经物体的反射返回至指纹传感组件40，该反射至指纹传感组件40的光线为指纹的成像光线，指纹传感组件40根据成像光线进行指纹的识别。
由于OLED触摸屏价格昂贵，目前的终端市场上，LCD触摸屏仍然占据很大的比例；图2为现有技术中将指纹屏下识别技术应用于LCD触摸屏的示意图；如图2所示，LCD触摸屏包括背光板21、棱镜膜22和处理层23；其中，背光板21用于为LCD触摸屏提供光源，棱镜膜22能够提高屏幕亮度，处理层23可以将棱镜膜22处理后的光线进行进一步处理。
进一步的，引入图3说明棱镜膜22对物体反射光的影响，图3为现有技 术中LCD触摸屏中的棱镜膜对物体反射光的影响示意图，图3为图2中椭圆中的棱镜膜的放大图；如图2-图3所示，将现有技术中的指纹屏下识别技术应用于LCD触摸屏，即在LCD触摸屏下方设置指纹传感组件40；当在LCD触摸屏的指纹识别区域有物体遮挡时，LCD触摸屏发出的光经物体的反射返回至指纹传感组件40时，会受到棱镜膜22的影响会发生折射并发散，导致经物体的反射的光无法到达，或者有少量的光线进入指纹传感组件40，进而在指纹传感组件40上造成指纹的视场缺失和畸变，导致指纹传感组件40无法实现指纹的识别。
如图2中的阴影部分所示，在物体的中心位置处的反射光由于棱镜膜22的影响无法进入指纹传感组件40，导致指纹传感组件40的中心位置处的视场缺失，阴影部分为无光线进入的区域。
值得注意的是，本申请中并未对LCD触摸屏进行详细说明，主要是为了说明LCD触摸屏中的棱镜膜22对物体的反射光的影响，本申请中的LCD触摸屏可与现有技术中的LCD触摸屏的结构相同。
为了解决屏下指纹识别技术在LCD触摸屏中无法应用的问题，本申请提供了一种指纹识别装置，该指纹识别装置设置在有LCD触摸屏20的终端中，如应用在智能手机、平板电脑或其他具有其他LCD触摸屏20的终端中。图4为本申请中实施例一的指纹识别装置的结构示意图，如图4所示，本申请中的指纹识别装置包括：反射组件30和指纹传感组件40。
其中，反射组件30设置在LCD触摸屏20的指纹识别区域的下方。为了适应用户的解锁习惯，本实施例中的LCD触摸屏20的指纹识别区域可以设置在LCD触摸屏20原设置Home键的位置处；可以想到的是，LCD触摸屏20的指纹识别区域也可设置在LCD触摸屏20的其他位置处，或者，LCD触摸屏20的指纹识别区域可以设置为多个；当LCD触摸屏20的指纹识别区域可以设置为多个时，每个LCD触摸屏20的指纹识别区域下方均设置有对应的反射组件30。
本实施例中的反射组件30可以为反射镜、楔形玻璃或其他具有反射面能够反射光线的器件。图4中示例性的以反射镜为例进行说明。其中，指纹传感组件40设置在LCD触摸屏20的下方，且位于反射组件30的反射区域内。
如图4所示，当指纹识别区域有物体，如手指时，触摸指纹识别区域的 物体反射的第一反射光101，会经过LCD触摸屏20中的棱镜膜22的折射射出；本实施例中，当物体覆盖指纹识别区域时，由于外部光源，如自然光，即会依次透过物体和指纹识别区域的透射光，也会经过LCD触摸屏20中的棱镜膜22的折射射出，图4中并未示出。可以想到的是，这些第一反射光101或者透射光在OLED触摸屏屏下指纹识别技术中会照射至指纹识别组件上。
本实施例中，第一反射光101或者透射光经棱镜膜22的折射射出后，反射镜的反射面能够接收到，并将该第一反射光101或者透射光反射后形成第二反射光102，照射至指纹传感组件40上，进而使得指纹传感组件40获取经棱镜膜22的折射的光线，使得进行指纹识别。本实施例中的指纹传感组件40接收到的第二反射光102的光量大于预设光量，具体的，预设光量为能够识别出指纹的最小光量。
可选的，本实施例中的指纹传感组件40包括：光学指纹传感器芯片41、滤波片42和芯片载体43。
具体的，光学指纹传感器芯片41设置在芯片载体43上，滤波片42设置在光学指纹传感器芯片41上，光学指纹传感器芯片41的光线接收面朝向反射组件30设置。本实施例中第二反射光102经滤波片42处理后，照射至光学指纹传感器芯片41。其中，滤波片42用于对第二反射光102中的杂散光进行过滤处理。
本实施例中为了使得指纹传感组件40能够获取更多的第二反射光102，提高指纹的识别效率和准确率；本实施例中根据LCD触摸屏20中的棱镜膜22的折射光的折射规律，如手指正下方的第一反射光101或者透射光经棱镜膜22的折射和发散均射向手指的周围；对应的，可以不将反射组件30设置在指纹识别区域的正下方，如设置在相对于指纹识别区域偏左或者偏右的位置处，使得反射组件30能够将经棱镜膜22折射的第一反射光101或者透射光更多地反射至指纹传感组件40中。
可选的，为了使得该指纹识别装置在终端中正常应用，可以预先设置反射组件30和指纹传感组件40对应的固定模组，且在终端的中框中预先设置与反射组件30和指纹传感组件40对应的固定模组的卡槽，以及卡槽的相对位置；将反射组件30安装在和指纹传感组件40对应的固定模组后，将固定 模组卡设在卡槽的对应位置处，实现反射组件30和指纹传感组件40的位置的固定。
本实施例提供的指纹识别装置应用于有液晶显示LCD触摸屏的终端，具体包括：反射组件和指纹传感组件；其中，反射组件设置在LCD触摸屏的指纹识别区域的下方，指纹传感组件设置在LCD触摸屏的下方，且位于反射组件的反射区域内；触摸指纹识别区域的物体反射的第一反射光，或者依次透过物体和指纹识别区域的透射光，经反射组件反射后形成第二反射光，照射至指纹传感组件上。本实施例通过屏下的反射组件将触摸指纹识别区域的物体反射的反射光或有过物体的透射光反射至指纹传感组件，使得指纹传感组件根据获取到的指纹成像光线获取指纹图像，进而达到识别指纹的效果。
在上述实施例的基础上，下面结合图5对本申请提供的指纹识别装置进行进一步说明，图5为本申请中实施例二的指纹识别装置的结构示意图，如图5所示，本实施例中的指纹识别装置还包括：光处理组件50。
其中，光处理组件50设置在LCD触摸屏20的下方，且位于反射组件30和指纹传感组件40的中间；具体的，光处理组件50设置在第二反射光102的汇聚点处，第二反射光102经光处理组件50处理后照射至指纹传感组件40上。
可选的，本实施例中的光处理组件50包括：光阑51和透镜52。
其中，透镜52包括一平面和一曲面，光阑51设置在透镜52的平面上，且光阑51靠近反射组件30设置。由于光处理组件50设置在反射组件30反射的第二反射光102的汇聚点处，本实施例中的反射组件30反射的第二反射光102，均经过光阑51、透镜后照射至指纹传感组件40上。具体的，光处理组件50对第二反射光102起到汇聚的作用，使得原先由反射组件30反射的多个角度的第二反射光102在光处理组件50中进行汇聚，完全照射在指纹传感组件40上。
其中，本实施例中可以预先设置光处理组件50中的光阑51的大小和透镜的焦距，使得光处理组件50形成的焦平面小于或者等于，指纹传感组件40中的光学指纹传感器芯片41的接收面的大小，进而能够使得光学指纹传感器芯片41完全接收第二反射光102。
值得注意的是，本实施例中对透镜52的形态和数量不作具体限制。图5 中以透镜52为凸透镜，且凸透镜的数量为1个作为示例进行说明，本实施例中经反射组件30反射的第二反射光102，经光阑51和透镜52后，成倒立的实像，即在光学指纹传感器芯片41上可呈现物体对应的光线的倒立的实像；如物体为手指时，第二反射光102可以是每个指纹对应的反射的光，该第二反射光102在光学指纹传感器芯片41上呈现的光线的倒立的实像，即可反应指纹的分布，进而光学指纹传感器芯片41根据接收到的光线，实现对指纹的识别。
可以想到的是，光处理组件50在终端中的设置可以与上述实施例中的反射组件30、指纹传感组件40的方式相同；如预先设置光处理组件50对应的固定模组，该固定模组可以与指纹传感组件40的模组设置为一体，也可单独设置，具体的安装方式可参照上述实施例中的说明，在此不作限制。
可选的，本实施例中的反射组件30包括反射面，为了使得反射面能够更多的接收到棱镜膜22折射出的光，反射面与LCD触摸屏20之间的角度为锐角，本实施例中，该锐角具体可以为10°-40°。
图4和图5中示例性的将反射组件30中的反射面朝向右侧设置；可以想到的是，也可以将反射面朝向左侧设置，相应的，光处理组件50和指纹传感组件40设置在反射面左侧的反射区域内。
相应的，本实施例中的指纹传感组件40包括光学指纹传感器芯片41，第二反射光102照射至光学指纹传感器芯片41的光线接收面上，光学指纹传感器芯片41的光线接收面与LCD触摸屏20垂直设置。
其中，对应于反射组件30的反射面与LCD触摸屏20呈锐角设置的方式，且根据光线的传输规律，本实施例中将光学指纹传感器芯片41的光线接收面与LCD触摸屏20垂直设置，以顺利接收经光处理组件50处理的成像光线。
可选的，为了增大光学指纹传感器芯片41的成像视场，以防止接收到的光线的光量小于预设光量，可以将指纹光学指纹传感器芯片41的光线接收面倾斜设置，即光学指纹传感器芯片41的光线接收面与LCD触摸屏20之间的角度为钝角设置，以保证光学指纹传感器芯片41根据接收到的成像光线能够进行准确的指纹识别。具体的，本实施例中的钝角可以为90°-130°。
本实施例中的指纹识别装置还包括：光处理组件，光处理组件设置在LCD触摸屏的下方，且位于反射组件和指纹传感组件的中间；第二反射光经光处 理组件处理后照射至指纹传感组件上。光处理组件对反射组件反射的光进行汇聚，以实现在指纹传感组件上的成像，使得指纹传感组件实现对指纹的识别。
本申请中的反射组件30可以为反射镜、楔形玻璃或其他带有反射面的器件，下述实施例中对反射组件30为楔形玻璃时进行详细说明。
第一种可行的设置方式如下：
图6为本申请中实施例三的指纹识别装置的结构示意图，如图6所示，本实施例中的反射组件30为楔形玻璃。
其中，楔形玻璃的第一端面与LCD触摸屏20平行设置，楔形玻璃的反射面与LCD触摸屏20之间的角度为锐角，具体的，该反射面可以为楔形玻璃的第三端面的朝向楔形玻璃的内部的平面，本实施例中，该锐角具体可以为10°-40°；当指纹识别区域有物体遮挡时，物体反射的第一反射光101，或者透过物体的透射光可以透过第一端面照射至该反射面，该反射面具体的设置位置与设置角度可以与上述实施例中的反射镜的设置方式相同。
楔形玻璃的第二端面与LCD触摸屏20垂直设置，且光处理组件50设置在楔形玻璃的第二端面上；具体的，楔形玻璃的第二端面为第二反射光102汇聚点所在的平面，进一步的，光处理组件50中的光阑51设置在该第二端面上的第二反射光102的汇聚点处，具体的，光阑51的中心位置与第二反射光102汇聚点重叠；光处理组件50中的透镜52平面的一侧与光阑51贴合设置，具体的，光阑51的中心位置、第二反射光102汇聚点以及透镜52的焦点位于同一直线上。
本实施例中的指纹传感组件40包括光学指纹传感器芯片41。其中，第二反射光102照射至光学指纹传感器芯片41的光线接收面上，光学指纹传感器芯片41的光线接收面与LCD触摸屏20垂直设置。
本实施例中的指纹传感组件40还包括滤波片42和芯片载体43。
具体的，光学指纹传感器芯片41设置在芯片载体43上，滤波片42设置在光学指纹传感器芯片41上，光学指纹传感器芯片41的光线接收面朝向反射组件30设置。本实施例中第二反射光102经滤波片42处理后，照射至光学指纹传感器芯片41。其中，滤波片42用于对第二反射光102中的杂散光进行过滤处理。
进一步的，图6中示例性的示出了楔形玻璃与LCD触摸屏20的一种设置方式，即楔形玻璃的第一端面与LCD触摸屏20的下表面贴合设置，如可以将楔形玻璃通过粘接、卡设等方式安装在LCD触摸屏20的下表面。
或者，本实施例中的楔形玻璃可以LCD触摸屏20之间具有预设距离，该种情况下，楔形玻璃可以设置在终端的中框中，具体的设置安装方式可参照上述实施例中的反射组件30和指纹传感组件40的设置方式。
第二种可行的设置方式如下：
图7为本申请中实施例四的指纹识别装置的结构示意图，如图7所示，楔形玻璃可与上述第一种设置方式中的设置方式相同，即楔形玻璃的第一端面与LCD触摸屏20平行设置，楔形玻璃的反射面与LCD触摸屏20之间的角度为锐角，具体的，该反射面可以为楔形玻璃的第三端面的朝向楔形玻璃的内部的平面，本实施例中，该锐角具体可以为10°-40°；当指纹识别区域有物体遮挡时，物体反射的第一反射光101，或者透过物体的透射光可以透过第一端面照射至该反射面，该反射面具体的设置位置与设置角度可以与上述实施例中的反射镜的设置方式相同。
进一步的，本实施例中的指纹传感组件40包括光学指纹传感器芯片41，
为了增大光学指纹传感器芯片41的成像视场，以防止接收到的光线的光量小于预设光量，且为了避免光学指纹传感器芯片41获取的指纹图像的畸变，可以将指纹光学指纹传感器芯片41的光线接收面倾斜设置。
其中，第二反射光102照射至光学指纹传感器芯片41的光线接收面上，光学指纹传感器芯片41的光线接收面与LCD触摸屏20之间的角度为钝角。具体的，本实施例中的钝角可以为90°-130°。
进一步的，本实施例中的指纹传感组件40还包括滤波片42和芯片载体43。其中，滤波片42和芯片载体43的设置方式具体可参照上述第一种设置方式中的相关描述。
第三种可行的设置方式如下：
图8为本申请中实施例五的指纹识别装置的结构示意图，如图8所示，为了增大光学指纹传感器芯片41的成像视场，以防止接收到的光线的光量小于预设光量，且为了避免光学指纹传感器芯片41获取的指纹图像的畸变，可以将楔形玻璃的第二端面倾斜设置。
具体的，楔形玻璃的第一端面与LCD触摸屏20平行设置，楔形玻璃的反射面与LCD触摸屏20之间的角度为锐角，本实施例中，该锐角具体可以为10°-40°；楔形玻璃的第二端面与LCD触摸屏20的法线的角度为锐角，本实施例中，该锐角具体可以为0°-30°。
对应的，本实施例中的指纹传感组件40包括光学指纹传感器芯片41，第二反射光102照射至光学指纹传感器芯片41的光线接收面上，光学指纹传感器芯片41的光线接收面与LCD触摸屏20垂直设置。
进一步的，本实施例中的指纹传感组件40还包括滤波片42和芯片载体43。其中，滤波片42和芯片载体43的设置方式具体可参照上述第一种设置方式中的相关描述。
本实施例中说明了在反射组件为楔形玻璃时，楔形玻璃与指纹传感组件相对设置的可行的方式，不仅能够实现LCD触摸屏屏下指纹识别，且还可以增大光学指纹传感器芯片的成像视场，防止接收到的光线的光量小于预设光量，且避免了光学指纹传感器芯片获取的指纹图像的畸变，进一步提高了指纹传感器芯片的识别效率和质量。
本申请的第二方面还包括一种终端，该终端包括LCD触摸屏和指纹识别装置。具体的，该终端中的指纹识别装置可与上述实施例中的该指纹识别装置的实现的原理和技术效果类似，在此不作赘述。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (10)

  1. 一种指纹识别装置，其特征在于，应用于有液晶显示LCD触摸屏的终端，所述指纹识别装置包括：反射组件和指纹传感组件；其中，
    所述反射组件设置在所述LCD触摸屏的指纹识别区域的下方，所述指纹传感组件设置在所述LCD触摸屏的下方，且位于所述反射组件的反射区域内；
    触摸所述指纹识别区域的物体反射的第一反射光，或者依次透过所述物体和所述指纹识别区域的透射光，经所述反射组件反射后形成第二反射光，照射至所述指纹传感组件上。
  2. 根据权利要求1所述的装置，其特征在于，所述指纹识别装置还包括：光处理组件；
    所述光处理组件设置在所述LCD触摸屏的下方，且位于所述反射组件和所述指纹传感组件的中间；
    所述第二反射光，经所述光处理组件处理后照射至所述指纹传感组件上。
  3. 根据权利要求2所述的装置，其特征在于，所述反射组件包括反射面，所述反射面与所述LCD触摸屏之间的角度为锐角。
  4. 根据权利要求3所述的装置，其特征在于，所述指纹传感组件包括光学指纹传感器芯片；
    所述第二反射光照射至所述光学指纹传感器芯片的光线接收面上，所述光学指纹传感器芯片的光线接收面与所述LCD触摸屏垂直设置。
  5. 根据权利要求3所述的装置，其特征在于，所述指纹传感组件包括光学指纹传感器芯片；
    所述第二反射光照射至所述光学指纹传感器芯片的光线接收面上，所述光学指纹传感器芯片的光线接收面与所述LCD触摸屏之间的角度为钝角。
  6. 根据权利要求4或5所述的装置，其特征在于，所述反射组件为楔形玻璃，所述楔形玻璃的第一端面与所述LCD触摸屏平行设置，所述楔形玻璃的反射面与所述LCD触摸屏之间的角度为锐角，所述楔形玻璃的第二端面与所述LCD触摸屏垂直设置。
  7. 根据权利要求4所述的装置，其特征在于，所述反射组件为楔形玻璃，所述楔形玻璃的第一端面与所述LCD触摸屏平行设置，所述楔形玻璃的反射面与所述LCD触摸屏之间的角度为锐角，所述楔形玻璃的第二端面与所述 LCD触摸屏的法线的角度为锐角。
  8. 根据权利要求6所述的装置，其特征在于，所述光处理组件设置在所述楔形玻璃的第二端面上。
  9. 根据权利要求2所述的装置，其特征在于，所述光处理组件包括：光阑和透镜；
    所述透镜包括一平面和一曲面；
    所述光阑设置在所述透镜的平面上，且所述光阑靠近所述反射组件设置。
  10. 一种终端，其特征在于，包括：
    液晶显示LCD触摸屏和上述权利要求1-9中任一项所述的指纹识别装置。
PCT/CN2018/118860 2018-07-04 2018-12-03 指纹识别装置和终端 WO2020006976A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880002685.XA CN109643382A (zh) 2018-07-04 2018-12-03 指纹识别装置和终端

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2018/094495 2018-07-04
PCT/CN2018/094495 WO2020006706A1 (zh) 2018-07-04 2018-07-04 指纹模组和电子设备

Publications (1)

Publication Number Publication Date
WO2020006976A1 true WO2020006976A1 (zh) 2020-01-09

Family

ID=64789424

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2018/094495 WO2020006706A1 (zh) 2018-07-04 2018-07-04 指纹模组和电子设备
PCT/CN2018/118860 WO2020006976A1 (zh) 2018-07-04 2018-12-03 指纹识别装置和终端

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/094495 WO2020006706A1 (zh) 2018-07-04 2018-07-04 指纹模组和电子设备

Country Status (2)

Country Link
CN (2) CN109074488B (zh)
WO (2) WO2020006706A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111902823A (zh) * 2020-01-21 2020-11-06 深圳市汇顶科技股份有限公司 光学指纹检测装置、触摸屏和电子设备
TWI834384B (zh) * 2022-11-14 2024-03-01 友達光電股份有限公司 生物特徵辨識模組及其驅動方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109643382A (zh) * 2018-07-04 2019-04-16 深圳市汇顶科技股份有限公司 指纹识别装置和终端
CN109711393A (zh) * 2019-02-19 2019-05-03 昆山丘钛微电子科技有限公司 指纹识别模组及电子产品
CN109886228B (zh) * 2019-02-27 2023-12-08 努比亚技术有限公司 一种光学指纹解锁装置及移动终端
WO2020177051A1 (zh) * 2019-03-04 2020-09-10 深圳市汇顶科技股份有限公司 模组结构及电子设备
CN110071994A (zh) * 2019-04-25 2019-07-30 Oppo广东移动通信有限公司 电子设备
CN110796097B (zh) * 2019-10-30 2022-08-30 Oppo广东移动通信有限公司 屏下光学指纹模组、显示屏组件和电子设备
WO2021146965A1 (zh) * 2020-01-21 2021-07-29 深圳市汇顶科技股份有限公司 指纹检测装置、背光模组、显示屏和电子设备
CN113743158A (zh) * 2020-05-28 2021-12-03 Oppo广东移动通信有限公司 屏下识别组件以及电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017197337A1 (en) * 2016-05-13 2017-11-16 Synaptics Incorporated Systems and methods for injecting light into cover glass
CN107506730A (zh) * 2017-08-25 2017-12-22 北京小米移动软件有限公司 指纹模组、压力感应控制方法、装置及计算机可读存储介质
WO2018049944A1 (en) * 2016-09-17 2018-03-22 Shenzhen GOODIX Technology Co., Ltd. Under-screen optical sensor module for on-screen fingerprint sensing
CN207182338U (zh) * 2017-09-15 2018-04-03 南昌欧菲生物识别技术有限公司 光学指纹识别组件和电子装置
US20180096186A1 (en) * 2016-09-30 2018-04-05 Synaptics Incorporated Optical sensor with angled reflectors

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1183459A (ja) * 1997-09-01 1999-03-26 Fujitsu Ltd 凹凸面情報検出装置
FR2778548B1 (fr) * 1998-05-14 2000-08-25 Sagem Capteur optique d'empreinte digitale compact
CN2450664Y (zh) * 2000-10-31 2001-09-26 中国科学院上海光学精密机械研究所 指纹图像的显示采集仪
JP4438265B2 (ja) * 2001-09-28 2010-03-24 日本電気株式会社 画像入力装置及びそれを内蔵した電子機器
US7212279B1 (en) * 2002-05-20 2007-05-01 Magna Chip Semiconductor Ltd. Biometric identity verifiers and methods
US7274808B2 (en) * 2003-04-18 2007-09-25 Avago Technologies Ecbu Ip (Singapore)Pte Ltd Imaging system and apparatus for combining finger recognition and finger navigation
FR2861200B1 (fr) * 2003-10-17 2006-01-20 Sagem Dispositif optique de formation d'une image d'empreintes digitales
CN101034437A (zh) * 2007-01-12 2007-09-12 车全宏 指纹采集方法及高清晰薄型指纹采集器
US20080239285A1 (en) * 2007-03-30 2008-10-02 Chuan Liang Industrial Co., Ltd. Fingerprint identification system
WO2015005959A1 (en) * 2013-04-01 2015-01-15 Patrick Baudisch A touchscreen capable of fingerprint recognition
KR101441331B1 (ko) * 2013-07-19 2014-09-17 주식회사 슈프리마 광학식 지문 인식 장치
CN103455810A (zh) * 2013-08-30 2013-12-18 格科微电子（上海）有限公司 光学指纹采集装置、便携式电子装置及光学指纹采集方法
TWI534717B (zh) * 2014-05-30 2016-05-21 正崴精密工業股份有限公司 指紋感測器
KR101928319B1 (ko) * 2015-06-18 2018-12-12 선전 구딕스 테크놀로지 컴퍼니, 리미티드 광 감지 능력을 가지는 다기능 지문 센서
CN107251046B (zh) * 2015-10-23 2021-02-12 深圳市汇顶科技股份有限公司 光学指纹传感器及封装
CN107239724B (zh) * 2016-03-28 2020-07-28 上海箩箕技术有限公司 指纹成像模组
CN106127134B (zh) * 2016-06-20 2019-07-26 联想(北京)有限公司 光学装置、电子设备及其控制方法
CN106127194B (zh) * 2016-08-19 2022-05-06 浙江凯拓机电有限公司 一种指纹采集仪
CN107621712A (zh) * 2017-09-07 2018-01-23 维沃移动通信有限公司 一种液晶屏模组及显示终端
CN207352630U (zh) * 2017-09-15 2018-05-11 南昌欧菲生物识别技术有限公司 光学指纹识别组件及电子装置
CN107666527B (zh) * 2017-09-29 2020-11-06 努比亚技术有限公司 一种光线感应器组件及其控制方法与移动终端
CN208580413U (zh) * 2018-07-04 2019-03-05 深圳市汇顶科技股份有限公司 指纹模组和电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017197337A1 (en) * 2016-05-13 2017-11-16 Synaptics Incorporated Systems and methods for injecting light into cover glass
WO2018049944A1 (en) * 2016-09-17 2018-03-22 Shenzhen GOODIX Technology Co., Ltd. Under-screen optical sensor module for on-screen fingerprint sensing
US20180096186A1 (en) * 2016-09-30 2018-04-05 Synaptics Incorporated Optical sensor with angled reflectors
CN107506730A (zh) * 2017-08-25 2017-12-22 北京小米移动软件有限公司 指纹模组、压力感应控制方法、装置及计算机可读存储介质
CN207182338U (zh) * 2017-09-15 2018-04-03 南昌欧菲生物识别技术有限公司 光学指纹识别组件和电子装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111902823A (zh) * 2020-01-21 2020-11-06 深圳市汇顶科技股份有限公司 光学指纹检测装置、触摸屏和电子设备
TWI834384B (zh) * 2022-11-14 2024-03-01 友達光電股份有限公司 生物特徵辨識模組及其驅動方法

Also Published As

Publication number Publication date
CN210155676U (zh) 2020-03-17
WO2020006706A1 (zh) 2020-01-09
CN109074488B (zh) 2022-07-08
CN109074488A (zh) 2018-12-21

Similar Documents

Publication Publication Date Title
WO2020006976A1 (zh) 指纹识别装置和终端
WO2020035021A1 (zh) Lcd指纹识别系统、屏下光学指纹识别装置和电子装置
WO2020037991A1 (zh) 屏下光学指纹识别系统及电子装置
US10083335B2 (en) Image acquisition apparatus, terminal device, liquid crystal terminal device and image acquisition method
US10157305B2 (en) Cover-glass optical isolation for optical touch and fingerprint sensing
WO2020082369A1 (zh) 屏下生物特征识别装置和电子设备
WO2020150879A1 (zh) 屏下指纹识别系统、液晶显示屏指纹识别装置及电子设备
CN109863506A (zh) 指纹识别装置和电子设备
CN109643382A (zh) 指纹识别装置和终端
WO2020220305A1 (zh) 屏下指纹识别装置和电子设备
WO2018205866A1 (zh) 显示装置和移动终端
WO2018171178A1 (zh) 指纹识别器件及控制方法、触摸显示面板、触摸显示装置
CN111095289B (zh) 屏下指纹识别装置以及终端设备
TW201441940A (zh) 指紋取像裝置
CN111095275B (zh) 指纹识别的装置、方法和电子设备
CN211319247U (zh) 指纹识别装置、背光模组、液晶显示屏和电子设备
CN111507280B (zh) 显示面板及显示装置
WO2021087652A1 (zh) 液晶显示屏指纹识别系统、电子装置及指纹识别模组
WO2021012117A1 (zh) 屏下光学指纹识别装置及系统、扩散膜和液晶显示屏
US11477400B2 (en) Method for determining imaging ratio of flexible panel electronic device and storage medium
WO2021012259A1 (zh) 屏下指纹识别模组、lcd光学指纹识别系统及电子设备
CN210573823U (zh) 屏下指纹识别模组、lcd光学指纹识别系统及电子设备
CN1983300A (zh) 指纹辨识装置的平面光源模组
TWM558941U (zh) 取像裝置
US11656700B2 (en) Image capturing device and electronic equipment comprising the same

Legal Events

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

Ref document number: 18925116

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18925116

Country of ref document: EP

Kind code of ref document: A1