WO2021203622A1 - 屏内光学生物特征感测装置 - Google Patents

屏内光学生物特征感测装置 Download PDF

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Publication number
WO2021203622A1
WO2021203622A1 PCT/CN2020/114731 CN2020114731W WO2021203622A1 WO 2021203622 A1 WO2021203622 A1 WO 2021203622A1 CN 2020114731 W CN2020114731 W CN 2020114731W WO 2021203622 A1 WO2021203622 A1 WO 2021203622A1
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Prior art keywords
light
blocking layer
layer
sensing
hole
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PCT/CN2020/114731
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English (en)
French (fr)
Inventor
范成至
黄振昌
周正三
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神盾股份有限公司
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Priority to US17/912,441 priority Critical patent/US20230181067A1/en
Publication of WO2021203622A1 publication Critical patent/WO2021203622A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1176—Recognition of faces
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/14625—Optical elements or arrangements associated with the device
    • H01L27/14627—Microlenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/1463—Pixel isolation structures
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers

Definitions

  • the present invention relates to an optical biometric sensing device, and more particularly to an in-screen optical biometric sensing device, wherein the optical biometric sensing device is integrated in a display panel to provide a partial or full screen Optical biometric sensing function.
  • Today's mobile electronic devices are usually equipped with user biometric systems, including different technologies such as fingerprints, face shapes, irises, etc., to protect personal data security, such as mobile phones Or smart watches and other portable devices, which also have the function of mobile payment, for the user's biometric identification has become a standard function, and the development of mobile phones and other portable devices is toward full screen (or ultra-narrow bezel).
  • the traditional capacitive fingerprint buttons can no longer be used, and new miniaturized optical imaging devices (some are very similar to traditional camera modules, with complementary metal-oxide semiconductor (Complementary Metal-Oxide Semiconductor (CMOS) Image Sensor (CIS for short) sensing components and optical lens modules).
  • CMOS Complementary Metal-Oxide Semiconductor
  • the miniaturized optical imaging device is placed at the bottom of the screen (can be called under the screen), through the screen part of the light (especially organic light emitting diode (Organic Light Emitting Diode, OLED) screen), can capture the object pressed on the top of the screen
  • OLED Organic Light Emitting Diode
  • the image, especially the fingerprint image, can be called Fingerprint On Display (FOD).
  • the fingerprint sensing technology under the screen has certain difficulties, because the light representing the fingerprint image needs to penetrate the display panel, which causes difficulties in signal processing (because the fingerprint image signal will be combined with the light-transmitting pattern of the panel).
  • Complex image processing methods are solved.
  • different display panels have different light transmission ratios and light transmission patterns. It is often necessary to propose solutions for them. More importantly, as the development trend of display panels grows, it may eventually develop At this time, the optical fingerprint under the screen will be useless for heroes. Therefore, in order to solve the above-mentioned problems, the present invention proposes how to design an in-screen optical biometric sensing device, which is actually the problem to be solved by this disclosure.
  • an object of the present invention is to provide an in-screen optical biometric sensing device, wherein the optical biometric sensing device is integrated in the display panel to provide a partial or full-screen optical biometric sensing function.
  • the present invention provides an in-screen optical biometric sensing device, which at least includes: a plurality of display unit groups, each display unit group includes one or more display units; a plurality of light sensing elements are respectively arranged in In a plurality of gaps between these display unit groups; and a plurality of optomechanical structures are respectively arranged adjacent to these light sensing elements, and each optomechanical structure at least includes a light blocking layer for blocking stray light, These light sensor elements sense the biological characteristics of an object through these optical-mechanical structures.
  • the biometric sensing unit can be integrated with the display panel to provide a display panel with a built-in optical biometric sensing device, which allows the display function to be compatible with biological features.
  • the feature sensing function can be integrated and manufactured, thereby saving assembly cost, positioning structure or pasting structure required during assembly, etc.
  • the sensing unit can be configured to match the display pixels of the display panel, it can be designed with a full screen
  • the in-screen optical biometric sensing device with biometric sensing function further enhances the convenience of the display of electronic equipment and biometric sensing.
  • FIG. 1 shows a schematic partial cross-sectional view of an in-screen optical biometric sensing device according to a preferred embodiment of the present invention.
  • FIG. 1 shows schematic cross-sectional views of three examples of the optical-mechanical structure of FIG. 1.
  • 3A to 3C show schematic cross-sectional views of three examples of the optical-mechanical structure of FIG. 1.
  • FIG. 4A to 4D show schematic cross-sectional views of four examples of the optical-mechanical structure of FIG. 1.
  • 5 to 7 show partial cross-sectional schematic diagrams of three variations of the in-screen optical biometric sensing device in FIG. 1.
  • FIGS. 8 to 10 respectively show partial cross-sectional schematic diagrams of a variation example of the in-screen optical biometric sensing device of FIGS. 5 to 7.
  • the present disclosure provides an in-screen optical biometric sensing device, especially an in-screen optical fingerprint sensing device, which integrates the sensing unit or photosensitive element and collimation structure required by the optical fingerprint into an organic light emitting diode (Organic Light Emitting Diode).
  • Organic Light Emitting Diode Organic Light Emitting Diode
  • Diode, OLED organic light emitting diode
  • TFT thin-film transistor
  • LCD liquid crystal Display
  • ⁇ LED micro light emitting diode
  • any future display technology process to achieve Application of partial or full screen fingerprint sensing.
  • the in-screen optical biometric sensing device proposed in this disclosure relates to the structure that can be applied to LCDs and can also be applied to OLED displays, other existing displays or any other new displays in the future. It can be applied to OLED ( Or ⁇ LED) display structure can also be applied to LCD, other existing displays or any other new display structure in the future. That is, microlenses or collimators can be arranged on the upper and lower substrates of the display to provide in-screen optical biometric sensing for LCD, OLED (or ⁇ LED) displays, and the like.
  • FIG. 1 shows a schematic partial cross-sectional view of an in-screen optical biometric sensing device according to a preferred embodiment of the present invention.
  • 2A to 2C show schematic cross-sectional views of three examples of the optical-mechanical structure of FIG. 1.
  • the in-screen optical biometric sensing device 100 of this embodiment at least includes a plurality of display unit groups 20, a plurality of light sensing elements 32 and a plurality of optomechanical structures 33.
  • the in-screen optical biometric sensing device 100 at least includes a display cover layer 10, a plurality of display unit groups 20, and a sensing substrate 30.
  • the light sensing element 32 is disposed on the sensing substrate 30 .
  • the display cover layer 10 can be the upper glass substrate or the lower glass substrate of an existing OLED or ⁇ LED display panel (or other light-transmitting substrates, such as polymer substrates).
  • the above glass substrate is taken as an example for illustration Of course, for example, a flexible OLED panel does not have a display cover layer 10.
  • the display unit group 20 includes one or more display units 21 to 23 for displaying information.
  • the display units 21, 22, and 23 are, for example, green, red, and blue light-emitting units, respectively, which are used as OLED display panels to display information, but the content of the disclosure is not limited to this, because in the case of a single-color display unit It also applies.
  • the sensing substrate 30 at least includes a plurality of light sensing elements 32 (FIG. 2A ).
  • the display unit groups 20 are disposed between the display cover layer 10 and the sensing substrate 30, and the light sensing elements 32 are respectively disposed in a plurality of gaps G between the display unit groups 20 for sensing Measure the biological characteristics of an object F.
  • the sensing substrate 30 includes a plurality of light sensing elements 32
  • the content of the disclosure is not limited to this, as long as the light sensing elements 32 can be implemented in this embodiment.
  • the object F is located above the display cover layer 10. It is worth noting that the display cover layer 10 is an unnecessary element.
  • the display unit groups 20 can be disposed on or above the sensing substrate 30, or it can be said to be disposed on the light sensor.
  • the light sensor element 32 is, for example, a photodiode, a PIN Photodiode (PIN Photodiode) or an organic photodiode (Organic PhotoDiode, OPD) or any non-diode type photosensitive element structure, which converts the light energy of the light L from the object F into Electrical energy.
  • an in-screen optical biometric sensing device 100 can be obtained, in which the sensing unit 31 and the display pixels including the display unit group 20 can be integrated and manufactured to achieve the display function and the biometric sensing function.
  • the in-screen optical biometric sensing device 100 is described with a fingerprint sensor as an example, the present invention is not limited to this.
  • the in-screen optical biometric sensing device 100 can also sense images of any object, for example, in addition to fingerprint images, such as biometric features such as blood vessel images of fingers and blood oxygen concentration images, or biological features such as face shape and iris. feature.
  • the in-screen optical biometric sensing device 100 may further include a protective cover layer 90 disposed on the display cover layer 10, and the object F is located above the sensing substrate 30, or is located on or above the protective cover layer 90 .
  • the in-screen optical biometric sensing device 100 further includes a plurality of optical-mechanical structures 33, which are respectively arranged adjacent to these light sensing elements 32 (in this example, they are respectively arranged at these On or above the light sensor element 32), the meaning of two elements adjacent to each other means that there is no distance between the two elements, but a state of direct connection, which can also mean that there is a distance between the two elements.
  • the optical machine structure 33 at least includes a light blocking layer 34 for blocking stray light, and these optomechanical structures 33 and these light sensing elements 32 form a plurality of sensing units 31.
  • the optomechanical structure 33 transmits light from a predetermined viewing angle of the object F to the light sensing element 32.
  • the display cover layer 10 is a polarizer, and the polarizer cooperates with the light of the display unit group 20 to display information. This is the technology of the OLED display and will not be repeated here.
  • the sensing substrate 30 at least includes an OLED substrate 37 and a TFT layer 38 on the OLED substrate 37. These sensing units 31 are located on part of the TFT layer 38 (in the case of non-full-screen sensing) or all (in the case of full-screen sensing), and these display unit groups 20 are arranged on the TFT layer 38 (the TFT layer is actually It is not a single layer of material, and even includes a metal layer, because it is the prior art of display panels, so I won’t repeat it here). An array of a plurality of TFTs arranged in the TFT layer 38 may be formed. In an example, the TFT can control the switch of the display unit group 20 to provide a display effect.
  • the opto-mechanical structure 33 at least includes a light blocking layer 34, a micro lens 36 and a transparent medium layer 35.
  • the light blocking layer 34 is located above the light sensing element 32 and has a light hole 34A above the light sensing element 32.
  • the micro lens 36 is located above the light blocking layer 34.
  • the transparent medium layer 35 is located between the light blocking layer 34, the micro lens 36 and the light sensing element 32, and is filled in the light hole 34A to define the focal length required by the micro lens 36.
  • the microlens 36 can transmit light from the predetermined viewing angle of the object F (for example, the divergence angle as shown in FIG. 1) (other non-essential light can be regarded as stray light) through the transparent medium layer 35 and the light
  • the hole 34A enters the light sensor cell 32.
  • the light blocking layer 34 is located around the light sensing element 32 (which may include upper and/or side portions), so that the light blocking layer located around the light sensing element 32 34 blocks stray light from the surroundings (possibly from the display unit group 20, which is particularly important when implementing the in-screen optical biometric sensing technology), and improves the quality of the fingerprint image.
  • the light-blocking layer 34 can have a single-layer or multi-layer structure, which can be fabricated at the same time or different time periods.
  • the light-blocking layer can have a two-dimensional ( Figure 2A) or three-dimensional structure ( Figure 2B and Figure 2C). .
  • this example is similar to FIG. 2B.
  • the light-blocking layer 34 is also located around the transparent medium layer 35 to block stray light from the surrounding (possibly from the display unit group 20) and improve the quality of the fingerprint image.
  • the important structure of the present disclosure is that the light sensing element 32 and/or the optomechanical structure 33 is provided with a light blocking layer 34 on the side.
  • the light blocking layer 34 can protect the light sensing element 32 and/or the optomechanical structure 33 from being damaged. It is interfered by incident light from a side area such as the display unit group 20.
  • a light blocking layer can be further provided under the photo sensor element 32 (for example, by a metal layer or any opaque layer that can be used when forming the photo sensor element 32).
  • Optical layer to block stray light from below (for example, OLED substrate or TFT layer) to improve the quality of fingerprint images. Therefore, the light blocking layer located around the photo sensor element 32 can prevent the interference of stray light from the upper part, the side part and/or the lower part.
  • FIG. 3A to 3C show schematic cross-sectional views of three examples of the optical-mechanical structure of FIG. 1.
  • this example is similar to Fig. 2A, except that there is no light blocking layer. Therefore, the micro lens 36 of the optomechanical structure 33 is located above the light sensing element 32, and the transparent medium layer 35 is located between the micro lens 36 and the light sensing element 32.
  • the light receiving range of the light sensing element 32 is reduced so that the lateral size of the light sensing element 32 is smaller than that of the microlens 36, so as to provide a virtual aperture structure, so that the microlens 36 will predict from the object F. It is assumed that the light of the viewing angle passes through the transparent medium layer 35 and enters the light sensing element 32. Therefore, the provision of the virtual aperture structure can eliminate the need to provide a light blocking layer, thereby reducing the manufacturing process and reducing the manufacturing cost.
  • the in-screen optical biometric sensing device 100 may further include a lower light blocking layer 50 located below the light sensing element 32.
  • the lower light blocking layer 50 is not limited to a single material layer, and can also be a combination of an insulating layer and a metal layer or any opaque layer (the number of layers is not limited, and the insulating layer is located between the photo sensor element 32 and the metal layer or the opaque layer. In between, the metal layer or the opaque layer provides a light blocking effect), as long as it can block the stray light from below the photo sensor element 32.
  • the light blocking layer 34 is located around the light sensing element 32 to block stray light from around the light sensing element 32.
  • the light blocking layer 34 It is also located around the transparent medium layer 35 to eliminate the interference caused by the adjacent optical-mechanical structure 33 and the display unit group 20, and the lower light blocking layer 50 can eliminate the stray light interference from below.
  • the TFT can be formed on the TFT layer or the TFT array substrate first, and then the photo sensor element 32 can be formed above the TFT.
  • the pattern of the metal wiring layer of the TFT can be designed to make a part of the metal wiring layer It is used as the lower light blocking layer 50 so that the metal wiring layer has the effects of metal wiring and light shielding at the same time. It is worth noting that the lower light blocking layer 50 can also be disposed under all the light sensing elements 32 described above and below.
  • the optomechanical structure 33 is a collimating structure and also a multi-light-blocking layer structure, and includes at least a light-blocking layer 34, a second light-blocking layer 41 and a transparent medium layer 35.
  • the light blocking layer 34 is located above the light sensing element 32 and has a light hole 34A above the light sensing element 32.
  • the second light blocking layer 41 is located above the light blocking layer 34 and has a second light hole 41A corresponding to the light hole 34A.
  • the transparent medium layer 35 is located between the light blocking layer 34, the second light blocking layer 41 and the light sensing element 32, and is filled in the light hole 34A and the second light hole 41A.
  • the second light hole 41A cooperates with the light hole 34A to transmit the light from the predetermined viewing angle of the object F into the light sensor element 32.
  • the design needs to satisfy h>3(a1+a2)/ 2.
  • h represents the distance between the light blocking layer 34 and the second light blocking layer 41
  • a1 represents the aperture of the light hole 34A
  • a2 represents the aperture of the second light hole 41A. It is worth noting that a single light hole can be used to correspond to a single light sensor element 32, or multiple light holes can be used to correspond to a single light sensor element 32.
  • the parts similar to FIG. 4A will not be repeated.
  • the difference is that the light blocking layer 34 is located around the light sensing element 32 to eliminate the stray light interference of the adjacent optical mechanical structure 33 and the display unit group 20.
  • the optomechanical structure 33 is a multi-light-blocking layer structure, which includes at least a light-blocking layer 34, a second light-blocking layer 41, a third light-blocking layer 42 and a transparent Medium layer 35.
  • the third light blocking layer 42 is located between the light blocking layer 34 and the second light blocking layer 41 and has a third light hole 42A corresponding to the second light hole 41A and the light hole 34A.
  • the transparent medium layer 35 is located between the light blocking layer 34, the second light blocking layer 41, the third light blocking layer 42 and the light sensing element 32, and is filled in the light hole 34A, the second light hole 41A, and the third light hole 42A .
  • the third light hole 42A cooperates with the second light hole 41A and the light hole 34A to transmit the light from the predetermined viewing angle of the object F into the light sensor element 32. It is worth noting that more light-blocking layers and light holes can be provided to achieve the function of light collimation.
  • the parts similar to FIG. 4C will not be repeated.
  • the difference is that the light blocking layer 34 is located around the light sensing element 32 to eliminate the stray light interference of the adjacent optomechanical structure 33 and the display unit group 20.
  • FIG. 5 to 7 show partial cross-sectional schematic diagrams of three variations of the in-screen optical biometric sensing device in FIG. 1.
  • this example is similar to Figure 1.
  • the application is the LCD. Therefore, the display cover layer 10 is a color filter, and the optical-mechanical structures 33 are respectively disposed above the light-sensing elements 32, and the optical-mechanical structures 33 and the light-sensing elements 32 are formed Multiple sensing units 31.
  • the display unit group 20 and a part of the opto-mechanical structure 33 are disposed on the lower surface 11 of the display cover layer 10.
  • the filter cooperates with the display unit group 20 to display information.
  • the sensing substrate 30 includes at least a TFT array substrate 39.
  • each opto-mechanical structure 33 includes a microlens 36, which has a condensing structure (for the light emitted from the microlens 36, it is a concave condensing structure, but in other examples, it can also be a convex surface or other condensing structure.
  • a structure such as a plasma (Plasmonic) light-concentrating structure, etc.) to focus the light to the light sensor element 32 (the microlens 36 is separated from the light sensor element 32).
  • the microlens 36 is in an inverted state and is located on the lower surface 11 opposite to the light sensing element 32, which is different from the upright microlens in FIG. 1, but can be formed in accordance with related processes. It is worth noting that the light-concentrating structure can be formed by using the difference in refraction.
  • the optomechanical structure 33 may further include a light blocking layer 34 located on or around the light sensing element 32 and separated from the microlens 36.
  • the light blocking layer 34 has a light hole 34A, so that the light sensing element 32 receives through the light hole. 34A light.
  • the microlens 36 is separated from the light sensor element 32, and the lateral dimension of the light sensor element 32 is smaller than that of the microlens 36 to provide a virtual aperture structure so that the microlens 36 removes the light from the object F
  • the light of the preset viewing angle is transmitted into the light sensing element 32.
  • the micro lens 36 also has a condensing structure to focus the light to the light sensing element 32.
  • each optomechanical structure 33 is a multi-light-blocking layer structure including a light-blocking layer 34.
  • the optomechanical structures 33 and the display unit groups 20 are disposed on the lower surface 11 of the display cover layer 10, and the optomechanical structures 33 are respectively opposite to the light sensing elements 32.
  • FIGS. 8 to 10 respectively show partial cross-sectional schematic diagrams of a variation example of the in-screen optical biometric sensing device of FIGS. 5 to 7.
  • Figures 8 to 10 belong to the application of OLED or ⁇ LED.
  • the display cover layer 10 does not have a filter layer, but still has an opto-mechanical structure similar to that of Figures 5 to 7.
  • the OLED or ⁇ LED panel emits light from the lower substrate, and the upper substrate does not filter.
  • Optical layer but still retains the optical-mechanical structure.
  • FIG. 8 this example is similar to FIG. 5.
  • the microlens 36 is arranged on the lower surface 11 of the display cover layer 10 and is opposite to the light sensor element 32.
  • the difference is that these display unit groups 20 are arranged on the TFT layer 38.
  • FIGS. 9 and 10 which are similar to FIGS. 6 and 7 respectively, the difference is also that the display unit groups 20 are disposed on the TFT layer 38.
  • the light required by the light sensing element 32 of the above-mentioned in-screen optical biometric sensing device 100 may be ambient light, visible light provided by the display panel, infrared light source or other light sources, and visible light and infrared light sources additionally provided outside the display panel. Or other light sources, etc.
  • the biometric sensing unit can be integrated with the display panel to provide a display panel with a built-in optical biometric sensing device, which allows the display function to be compatible with biological features.
  • the feature sensing function can be integrated and manufactured, thereby saving assembly cost, positioning structure or pasting structure required during assembly, etc.
  • the sensing unit can be configured to match the display pixels of the display panel, it can be designed with a full screen
  • the in-screen optical biometric sensing device with biometric sensing function further enhances the convenience of the display of electronic equipment and biometric sensing.

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Abstract

一种屏内光学生物特征感测装置(100)，至少包括：多个显示单元组(20)，各显示单元组(20)包括一个或多个显示单元(21；22；23)；多个光感测元(32)，分别设置于此些显示单元组(20)之间的多个间隙(G)中；以及多个光机结构(33)，分别与此些光感测元(32)相邻地设置，各光机结构(33)至少包括用于阻挡杂散光的一阻光层(34)，此些光感测元(32)通过此些光机结构(33)来感测一物体(F)的生物特征。藉此可以将光学生物特征感测装置整合于显示面板之中，以提供局部或全屏式光学生物特征感测功能。

Description

屏内光学生物特征感测装置
交叉引用
本申请根据35U.S.C.§119要求2020年04月06日递交的，发明名称为“IN CELL OPTICAL FINGERPRINT SENSOR”的美国临时申请案63/005,703；2020年04月16日递交的，发明名称为“IN CELL OPTICAL FINGERPRINT SENSOR”的美国临时申请案63/010,931的优先权，且将上述申请作为参考。
技术领域
本发明是有关于一种光学生物特征感测装置，且特别是有关于一种屏内光学生物特征感测装置，其中光学生物特征感测装置整合于显示面板之中，以提供局部或全屏式光学生物特征感测功能。
背景技术
现今的移动电子装置(例如手机、平板电脑、笔记本电脑等)通常配备有使用者生物识别系统，包括了例如指纹、脸型、虹膜等等不同技术，用以保护个人数据安全，其中例如应用于手机或智能手表等携带型装置，也兼具有行动支付的功能，对于使用者生物识别更是变成一种标准的功能，而手机等携带型装置的发展更是朝向全屏幕(或超窄边框)的趋势，使得传统电容式指纹按键无法再被继续使用，进而演进出新的微小化光学成像装置(有些非常类似传统的相机模组，具有互补式金属氧化物半导体(Complementary Metal-Oxide Semiconductor(CMOS)Image Sensor(简称CIS))感测元件及光学镜头模组)。将微小化光学成像装置设置于屏幕下方(可称为屏下)，透过屏幕部分透光(特别是有机发光二极管(Organic Light Emitting Diode，OLED)屏幕)，可以撷取按压于屏幕上方的物体的图像，特别是指纹图像，可以称为屏幕下指纹感测(Fingerprint On Display，FOD)。
然而，屏幕下指纹感测技术有一定的困难度，因为代表指纹图像的光线需要穿透显示面板，造成信号处理上的困难(因为指纹影像信号会与面板透光图案结合在一起)，都需要复杂的影像处理方法解决，同时，不同的显示面板透光比率与透光图案也不同，常常都需要针对其提出解决方法，更重要的是，随着显示面板发展趋势的增长，最终有可能发展出不透光的技术，这时，屏下光学指纹将英雄无用武之地。为此，本发明为了解 决上述问题，将提出如何设计出一种屏内光学生物特征感测装置，实为本揭露内容所欲解决的问题。
发明内容
因此，本发明的一个目的是提供一种屏内光学生物特征感测装置，其中光学生物特征感测装置整合于显示面板之中，以提供局部或全屏式光学生物特征感测功能。
为达上述目的，本发明提供一种屏内光学生物特征感测装置，至少包括：多个显示单元组，各显示单元组包括一个或多个显示单元；多个光感测元，分别设置于此些显示单元组之间的多个间隙中；以及多个光机结构，分别与此些光感测元相邻地设置，各光机结构至少包括用于阻挡杂散光的一阻光层，此些光感测元通过此些光机结构来感测一物体的生物特征。
藉由上述的屏内光学生物特征感测装置，可以将生物特征的感测单元与显示面板整合在一起，提供一种具有内嵌式光学生物特征感测装置的显示面板，让显示功能与生物特征感测功能可以整合制造，藉此可以省下组装成本、组装时所需要的定位结构或粘贴结构等，此外，由于感测单元可以配合显示面板的显示像素来配置，故可设计出具有全屏生物特征感测功能的屏内光学生物特征感测装置，让电子设备的显示与生物特征感测的便利性更进一步提升。
为让本发明的上述内容能更明显易懂，下文特举较佳实施例，并配合所附图式，作详细说明如下。
附图说明
图1显示依据本发明较佳实施例的屏内光学生物特征感测装置的局部剖面示意图。
图2A至图2C显示图1的光机结构的三个例子的剖面示意图。
图3A至图3C显示图1的光机结构的三个例子的剖面示意图。
图4A至图4D显示图1的光机结构的四个例子的剖面示意图。
图5至图7显示图1的屏内光学生物特征感测装置的三个变化例子的局部剖面示意图。
图8至图10分别显示图5至图7的屏内光学生物特征感测装置的变化例子的局部剖面示意图。
符号说明如下：
F:物体
G:间隙
L:光线
10:显示盖板层
11:下表面
20:显示单元组
21,22,23:显示单元
30:感测基板
31:感测单元
32:光感测元
33:光机结构
34:阻光层
34A:光孔
35:透明介质层
36:微透镜
37:OLED基板
38:TFT层
39:TFT阵列基板
41:第二阻光层
41A:第二光孔
42:第三阻光层
42A:第三光孔
50:下阻光层
80:液晶显示材料
90:保护盖板层
100:屏内光学生物特征感测装置
具体实施方式
本揭露内容提供一种屏内光学生物特征感测装置，特别是屏内光学指纹感测装置，将光学指纹所需的感测单元或感光元件及准直结构整合于有机发光二极管(Organic Light Emitting Diode,OLED)显示器、薄膜晶体管(Thin-Film Transistor,TFT)液晶显示器(Liquid Crystal Display,LCD)、微发光二极管(Micro Light Emitting Diode,μLED)显示器或者未来的任何显示器技术的工艺中，以实现局部或全屏幕指纹感测的应用。
在本揭露内容所提出的屏内光学生物特征感测装置，有关可以应用于LCD的结构也可以应用于OLED显示器、其他现有显示器或其他未来任何新的显示器的结构，有关可以应用于OLED(或μLED)显示器的结构也可以应用于LCD、其他现有显示器或其他未来任何新的显示器的结构。亦即，微透镜或准直器可设置在显示器的上基板、下基板，来对LCD、OLED(或μLED)显示器等提供屏内光学生物特征感测。
图1显示依据本发明较佳实施例的屏内光学生物特征感测装置的局部剖面示意图。图2A至图2C显示图1的光机结构的三个例子的剖面示意图。如图1与图2A所示，本实施例的屏内光学生物特征感测装置100至少包括多个显示单元组20、多个光感测元32及多个光机结构33。以另一观点而言，屏内光学生物特征感测装置100至少包括一显示盖板层10、多个显示单元组20以及一感测基板30，光感测元32设置于感测基板30上。
显示盖板层10可以是现有的OLED或μLED的显示面板的上玻璃基板或下玻璃基板(亦或者是其他透光基板，譬如高分子基板)，于此是以上玻璃基板做为例子作说明，当然例如软性OLED面板就没有显示盖板层10。
显示单元组20包括一个或多个显示单元21至23，供显示信息用。于本例子中，显示单元21、22及23例如分别为绿色、红色及蓝色发光单元，作为OLED显示面板显示信息用，但并未将本揭露内容限制于此，因为单一色显示单元的场合亦适用。
于本实施例中，感测基板30至少包括多个光感测元32(图2A)。此些显示单元组20设置于显示盖板层10及感测基板30之间，且此些光感测元32分别设置于此些显示单元组20之间的多个间隙G中，用于感测位于一物体F的生物特征。虽然以上是以感测基板30包括多个光感测元32为例子作说明，但是并未将本揭露内容限制于此，只要可以将光感测元32于本实施例中即可达成本实施例的效果。物体F位于显示盖板层10的上方。值得注意的是，显示盖板层10为非必要元件，当省略显示盖板层10时，此些显示单元组20可以设置于感测基板30上或上方，也可以说是设置于光感测元32的上方，但本揭露内容并未受限于此。光感测元32譬如是光二极管、PIN型光电二极管(PIN  Photodiode)或有机光电二极管(Organic PhotoDiode,OPD)或任何非二极管型的感光元件结构，将来自物体F的光线L的光能转换成电能。藉此，可以获得一种屏内光学生物特征感测装置100，其中感测单元31与包含显示单元组20的显示像素可以整合制造，达成显示功能与生物特征感测的功能。虽然屏内光学生物特征感测装置100是以指纹感测器作为例子来说明，但是并未将本发明限制于此。于其他例子中，屏内光学生物特征感测装置100也可以感测任何物件的影像，又例如可以除了指纹影像，例如手指的血管图像、血氧浓度图像等生物特征、或脸型、虹膜等生物特征。
因为将光感测元32设置于原有显示器的显示像素的间隙中，所以除了局部感测单元阵列以外，也可以将光感测元32制作成全屏幕的感测单元阵列。因此，此些光感测元32的涵盖范围小于或等于此些显示单元组20的涵盖范围。此外，屏内光学生物特征感测装置100可以更包括一保护盖板层90，设置于显示盖板层10上，物体F位于感测基板30上方，或者是位于保护盖板层90上或上方。
如图1与图2A所示，屏内光学生物特征感测装置100更包括多个光机结构33，分别与此等光感测元32相邻地设置(于本例是分别设置于此等光感测元32上或上方)，两元件相邻的意义表示两元件之间没有距离，而呈现直接连接的状态，也可以表示两元件之间有一段距离，于本例子中，光机结构33至少包括用于阻挡杂散光的阻光层34，此等光机结构33与此等光感测元32组成多个感测单元31。光机结构33将来自物体F的一预设视角的光线传递至光感测元32中。显示盖板层10为一偏光片(Polarizer)，偏光片配合显示单元组20的光线以显示信息，此为OLED显示器的技术，于此不赘述。感测基板30至少包括一OLED基板37以及位于OLED基板37上的一TFT层38。此些感测单元31位于TFT层38的局部(非全屏感测的情况下)或全部(全屏感测的情况下)上，且此些显示单元组20设置于TFT层38(TFT层实际上不是单层材料，甚至包含了金属层，因为为显示面板的现有技术，在此不赘述)。TFT层38中可以形成多个TFT所排列成的阵列。于一例子中，TFT可以控制显示单元组20的开关，以提供显示效果。
于图2A中，光机结构33至少包括一阻光层34、一微透镜36以及一透明介质层35。阻光层34位于光感测元32上方，并于光感测元32上方具有一光孔34A。微透镜36位于阻光层34上方。透明介质层35位于阻光层34、微透镜36与光感测元32之间，并填入光孔34A，用来定义微透镜36所需的焦距。依据此结构设计，可以让微透镜36将来自物体F的预设视角(譬如图1所示的发散角)的光线(其他非必要光线都可视为杂散光)传递通过透明介质层35及光孔34A而进入光感测元32中。
如图2B所示，本例子类似于图2A，差异点在于阻光层34位于光感测元32周围(可以包含上部及/或侧部)，使得位于光感测元32周围的阻光层34阻挡来自周围的杂散光(可能来自显示单元组20，这在实施屏内光学生物特征感测技术时更显得特别重要)，改善指纹图像的品质。值得注意的是，阻光层34可以是具有单层或多层结构，于同一时段或不同时段制作完成，阻光层可以是二维(图2A)或三维的结构(图2B与图2C)。
如图2C所示，本例子类似于图2B，差异点在于阻光层34也位于透明介质层35的周围，阻挡来自周围的杂散光(可能来自显示单元组20)，改善指纹图像的品质。
因此，本揭露内容的重要结构在于光感测元32及/或光机结构33的侧边设置有阻光层34，阻光层34可以保护光感测元32及/或光机结构33不受来自侧边的例如显示单元组20的区域的入射光的干扰。
值得注意的是，在上述及下述所有例子中，更可以在光感测元32的下方更设置一下阻光层(譬如藉由金属层或形成光感测元32时可以利用的任何不透光层)，以阻挡来自下方(譬如是OLED基板或TFT层)的杂散光，改善指纹图像的品质。因此，位于光感测元32周围的阻光层可以阻止来自上部、侧部及/或下部的杂散光干扰。
图3A至图3C显示图1的光机结构的三个例子的剖面示意图。如图3A所示，本例子类似于图2A，差异点在于没有阻光层。因此，光机结构33的微透镜36位于光感测元32上方，而透明介质层35位于微透镜36与光感测元32之间。于此例子中，缩小光感测元32的收光范围，使得光感测元32的横向尺寸小于微透镜36的横向尺寸，以提供一虚拟孔径结构，使得微透镜36将来自物体F的预设视角的光线传递通过透明介质层35而进入光感测元32中。因此，提供虚拟孔径结构可以不需要设置阻光层，藉此减少制造程序，降低制造成本。
如图3B所示，类似于图3A的部分不再赘述，差异点在于更提供一阻光层34，阻光层34位于光感测元32上方以及透明介质层35的周围，使得位于透明介质层35周围的阻光层34阻挡来自周围的杂散光，消除相邻光机结构33所造成的干扰。此外，屏内光学生物特征感测装置100可以更包含一下阻光层50，位于光感测元32的下方。下阻光层50并不限于单一材料层，也可以是绝缘层与金属层或任何不透光层的组合(不限制层数，绝缘层位于光感测元32与金属层或不透光层之间，金属层或不透光层提供阻光的效果)，只要能阻挡来自光感测元32下方的杂散光即可。
如图3C所示，类似于图3B的部分不再赘述，差异点在阻光层34位于光感测元32周围，以阻挡来自光感测元32周围的杂散光，此外，阻光层34也位于透明介质层35的 周围，以消除相邻光机结构33及显示单元组20所造成的干扰，以及利用下阻光层50可以消除来自下方的杂散光干扰。于一例子中，在TFT层或TFT阵列基板上可以先形成TFT，然后于TFT的上方形成光感测元32，因此，可以设计TFT的金属配线层的图案，使金属配线层的一部分当作下阻光层50，以让金属配线层同时具有金属配线及遮光的效果。值得注意的是，下阻光层50也可配置于前述及后述的所有光感测元32的下方。
图4A至图4D显示图1的光机结构的四个例子的剖面示意图。如图4A所示，光机结构33为一种准直结构，也是一种多阻光层结构，至少包括一阻光层34、一第二阻光层41以及一透明介质层35。阻光层34位于光感测元32上方，并于光感测元32上方具有光孔34A。第二阻光层41位于阻光层34上方，并具有对应于光孔34A的一第二光孔41A。透明介质层35位于阻光层34、第二阻光层41与光感测元32之间，并填入光孔34A及第二光孔41A。第二光孔41A配合光孔34A将来自物体F的预设视角的光线传递进入光感测元32中，为提供较佳的准直效果，设计上需要满足h>3(a1+a2)/2，其中h代表阻光层34与第二阻光层41的距离，a1代表光孔34A的孔径，a2代表第二光孔41A的孔径。值得注意的是，可以采用单一光孔对应至单一光感测元32，也可以采用多光孔对应至单一光感测元32。
如图4B所示，类似于图4A的部分不再赘述，差异点在于阻光层34位于光感测元32周围，消除相邻光机结构33及显示单元组20的杂散光干扰。
如类似于图4A的图4C所示，光机结构33为一种多阻光层结构，至少包括一阻光层34、一第二阻光层41、一第三阻光层42及一透明介质层35。第三阻光层42位于阻光层34与第二阻光层41之间，并具有一第三光孔42A对应于第二光孔41A及光孔34A。透明介质层35位于阻光层34、第二阻光层41、第三阻光层42与光感测元32之间，并填入光孔34A、第二光孔41A及第三光孔42A。第三光孔42A配合第二光孔41A及光孔34A将来自物体F的预设视角的光线传递进入光感测元32中。值得注意的是，可以设置更多的阻光层及其光孔等来达成光线准直的功能。
如图4D所示，类似于图4C的部分不再赘述，差异点在于阻光层34位于光感测元32周围，消除相邻光机结构33及显示单元组20的杂散光干扰。
图5至图7显示图1的屏内光学生物特征感测装置的三个变化例子的局部剖面示意图。如图5所示，本例类似于图1，差异点在于应用的场合是属于LCD的场合。因此，显示盖板层10为一滤光片(Color Filter)，此等光机结构33分别设置于此等光感测元32上方，此等光机结构33与此等光感测元32组成多个感测单元31。显示单元组20与光 机结构33的一部分设置于显示盖板层10的一下表面11。滤光片配合显示单元组20来显示信息，感测基板30至少包括一TFT阵列基板39，TFT阵列基板39上形成排列成阵列的多个TFT，且光感测元32位于TFT阵列基板39上。于本例中，显示盖板层10与感测基板30之间可以填入有液晶显示材料80。此外，各光机结构33包括一微透镜36，微透镜36具有一聚光结构(针对射出微透镜36的光线而言为凹面聚光结构，但于其他例子中也可以是凸面或其他聚光结构，譬如电浆子(Plasmonic)聚光结构等)来将光线聚焦至光感测元32(微透镜36与光感测元32隔开)。微透镜36于此属于倒置的状态位于下表面11上而与光感测元32相对，与图1的正置的微透镜有所差异，但是可配合相关工艺来形成。值得注意的是，聚光结构可以利用折射差异来形成。
此外，光机结构33可以更包括阻光层34，位于光感测元32上或周围并与微透镜36隔开，阻光层34具有光孔34A，使得光感测元32接收通过光孔34A的光线。
如图6所示，微透镜36与光感测元32隔开，光感测元32的横向尺寸小于微透镜36的横向尺寸，以提供一虚拟孔径结构，使得微透镜36将来自物体F的预设视角的光线传递进入光感测元32中。于此，微透镜36亦具有一聚光结构来将光线聚焦至光感测元32。
如图7所示，本例结合图5及图4C，同样可以达成光线准直的功能，此时的第二阻光层41设置于显示盖板层10的下表面11，阻光层34与光感测元32分隔一预定距离。值得注意的是，可以采用单一光孔对应至单一光感测元32，也可以采用多光孔对应至单一光感测元32。此外，图4A的光机结构亦可应用于图7。因此，于图7中，各光机结构33为一种包含阻光层34的多阻光层结构。此些光机结构33与此些显示单元组20设置于显示盖板层10的下表面11，此些光机结构33分别与此些光感测元32相对。
图8至图10分别显示图5至图7的屏内光学生物特征感测装置的变化例子的局部剖面示意图。图8至图10属于OLED或μLED的应用场合，显示盖板层10没有滤光层，但是仍然具有类似图5至图7的光机结构，OLED或μLED面板由下基板发光，上基板没有滤光层，但还是保有光机结构。如图8所示，本例子类似于图5，微透镜36设置于显示盖板层10的下表面11而与光感测元32相对，差异点在于此些显示单元组20设置于TFT层38。如图9与图10所示，分别类似于图6与图7，差异点也是在于此些显示单元组20设置于TFT层38。
上述的屏内光学生物特征感测装置100的光感测元32所需的光线可以是环境光、显示面板所提供的可见光、红外光源或其他光源、另外设置于显示面板外部的可见光、红外光源或其他光源等。
藉由上述的屏内光学生物特征感测装置，可以将生物特征的感测单元与显示面板整合在一起，提供一种具有内嵌式光学生物特征感测装置的显示面板，让显示功能与生物特征感测功能可以整合制造，藉此可以省下组装成本、组装时所需要的定位结构或粘贴结构等，此外，由于感测单元可以配合显示面板的显示像素来配置，故可设计出具有全屏生物特征感测功能的屏内光学生物特征感测装置，让电子设备的显示与生物特征感测的便利性更进一步提升。
在较佳实施例的详细说明中所提出的具体实施例仅用以方便说明本发明的技术内容，而非将本发明狭义地限制于上述实施例，在不超出本发明的精神及申请专利范围的情况下，所做的种种变化实施，皆属于本发明的范围。

Claims (19)

  1. 一种屏内光学生物特征感测装置(100)，其特征在于，至少包括：
    多个显示单元组(20)，各该显示单元组(20)包括一个或多个显示单元(21；22；23)；以及
    多个光感测元(32)，分别设置于所述多个显示单元组(20)之间的多个间隙(G)中；以及
    多个光机结构(33)，分别与所述多个光感测元(32)相邻地设置，各该光机结构(33)至少包括用于阻挡杂散光的一阻光层(34)，所述多个光感测元(32)通过所述多个光机结构(33)来感测一物体(F)的生物特征。
  2. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，所述多个光机结构(33)分别设置于所述多个光感测元(32)上，所述多个光机结构(33)与所述多个光感测元(32)组成多个感测单元(31)，各该光机结构(33)将来自该物体(F)的一预设视角的光线传递至该光感测元(32)中。
  3. 如权利要求2所述的屏内光学生物特征感测装置(100)，其特征在于，所述多个光感测元(32)设置于一感测基板(30)上，且该感测基板(30)至少包括：一OLED基板(37)；以及一TFT层(38)，位于该OLED基板(37)上，其中所述多个感测单元(31)位于该TFT层(38)上，且所述多个显示单元组(20)设置于该TFT层(38)。
  4. 如权利要求2所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)更包括一微透镜(36)，该微透镜(36)具有一聚光结构来将光线聚焦至该光感测元(32)，该微透镜(36)设置于一显示盖板层(10)的一下表面(11)而与该光感测元(32)相对。
  5. 如权利要求4所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)上或周围并与该微透镜(36)隔开，该阻光层(34)具有一光孔(34A)，使得该光感测元(32)接收通过该光孔(34A)的光线。
  6. 如权利要求4所述的屏内光学生物特征感测装置(100)，其特征在于，该微透镜(36)与该光感测元(32)隔开，该光感测元(32)的横向尺寸小于该微透镜(36)的横向尺寸，以提供一虚拟孔径结构，使得该微透镜(36)将来自该物体(F)的该预设视角的光线传递进入该光感测元(32)中。
  7. 如权利要求2所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)为一种包含该阻光层(34)的多阻光层结构，且该光机结构(33)设置于一显示盖板层(10)的一下表面(11)而与该光感测元(32)相对。
  8. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)上方，并于该光感测元(32)上方具有一光孔(34A)，其中各该光机结构(33)至少更包括：
    一微透镜(36)，位于该阻光层(34)上方；以及
    一透明介质层(35)，位于该阻光层(34)、该微透镜(36)与该光感测元(32)之间，并填入该光孔(34A)，其中该微透镜(36)将来自该物体(F)的一预设视角的光线传递通过该透明介质层(35)及该光孔(34A)而进入该光感测元(32)中。
  9. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)周围，并于该光感测元(32)上方具有一光孔(34A)，其中位于该光感测元(32)周围的阻光层(34)阻挡来自周围的杂散光，其中各该光机结构(33)至少更包括：
    一微透镜(36)，位于该阻光层(34)上方；以及
    一透明介质层(35)，位于该阻光层(34)、该微透镜(36)与该光感测元(32)之间，并填入该光孔(34A)，其中该微透镜(36)将来自该物体(F)的一预设视角的光线传递通过该透明介质层(35)及该光孔(34A)而进入该光感测元(32)中。
  10. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)至少包括：
    一微透镜(36)，位于该光感测元(32)上方；以及
    一透明介质层(35)，位于该微透镜(36)与该光感测元(32)之间，其中该光感测元(32)的横向尺寸小于该微透镜(36)的横向尺寸，以提供一虚拟孔径结构，使得该微透镜(36)将来自该物体(F)的一预设视角的光线传递通过该透明介质层(35)而进入该光感测元(32)中。
  11. 如权利要求10所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)的该阻光层(34)位于该光感测元(32)上方或周围以及该透明介质层(35)的周围，其中位于该透明介质层(35)周围的该阻光层(34)阻挡来自周围的杂散光。
  12. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)上方或周围，并于该光感测元(32)上方具有一光孔(34A)，其中各该光机结构(33)至少更包括：
    一第二阻光层(41)，位于该阻光层(34)上方，具有一第二光孔(41A)对应于该光孔(34A)；以及
    一透明介质层(35)，位于该阻光层(34)、该第二阻光层(41)与该光感测元(32)之间，并填入该光孔(34A)及该第二光孔(41A)，其中该第二光孔(41A)配合该光孔(34A)将来自该物体(F)的一预设视角的光线传递进入该光感测元(32)中，且h>3(a1+a2)/2，其中h代表该阻光层(34)与该第二阻光层(41)的距离，a1代表该光孔(34A)的孔径，a2代表该第二光孔(41A)的孔径。
  13. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)上方或周围，并于该光感测元(32)上方具有一光孔(34A)，其中各该光机结构(33)至少更包括：
    一第二阻光层(41)，位于该阻光层(34)上方，并具有一第二光孔(41A)；
    一第三阻光层(42)，位于该阻光层(34)与该第二阻光层(41)之间，并具有一第三光孔(42A)对应于该第二光孔(41A)及该光孔(34A)；以及
    一透明介质层(35)，位于该阻光层(34)、该第二阻光层(41)、该第三阻光层(42)与该光感测元(32)之间，并填入该光孔(34A)、该第二光孔(41A)及该第三光孔(42A)，其中该第三光孔(42A)配合该第二光孔(41A)及该光孔(34A)将来自该物体(F)的一预设视角的光线传递进入该光感测元(32)中。
  14. 如权利要求1所述的屏内光学生物特征感测装置(100)，其特征在于，所述多个光感测元(32)设置于一感测基板(30)上，所述多个光机结构(33)分别设置于所述多个光感测元(32)上方，所述多个光机结构(33)与所述多个光感测元(32)组成多个感测单元(31)，其中各该光机结构(33)将来自该物体(F)的一预设视角的光线传递至该光感测元(32)中，且该感测基板(30)至少包括一TFT阵列基板(39)，该光感测元(32)位于该TFT阵列基板(39)上，且所述多个显示单元组(20)设置于该TFT阵列基板(39)上方的一显示盖板层(10)的一下表面(11)。
  15. 如权利要求14所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)更包括一微透镜(36)，该微透镜(36)具有一聚光结构来将光线聚焦至该光感测元(32)，且所述多个显示单元组(20)与所述多个微透镜(36)都设置于该显示盖板层(10)的该下表面(11)。
  16. 如权利要求15所述的屏内光学生物特征感测装置(100)，其特征在于，该阻光层(34)位于该光感测元(32)上或周围并与该微透镜(36)隔开，该阻光层(34)具有一光孔(34A)，使得该光感测元(32)接收通过该光孔(34A)的光线。
  17. 如权利要求15所述的屏内光学生物特征感测装置(100)，其特征在于，该微透镜(36)与该光感测元(32)隔开，该光感测元(32)的横向尺寸小于该微透镜(36)的横向尺寸，以提供一虚拟孔径结构，使得该微透镜(36)将来自该物体(F)的一预设视角的光线传递进入该光感测元(32)中。
  18. 如权利要求14所述的屏内光学生物特征感测装置(100)，其特征在于，各该光机结构(33)为一种包含该阻光层(34)的多阻光层结构，所述多个光机结构(33)与所述多个显示单元组(20)都设置于该显示盖板层(10)的该下表面(11)。
  19. 如权利要求1至18中的任一项所述的屏内光学生物特征感测装置(100)，其特征在于，更包含一下阻光层(50)，设置于各该光感测元(32)的下方，以阻挡来自各该光感测元(32)下方的杂散光。
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