CN109308435B - OLED screen body used as light source of fingerprint identification device and optical fingerprint identification device - Google Patents
OLED screen body used as light source of fingerprint identification device and optical fingerprint identification device Download PDFInfo
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- CN109308435B CN109308435B CN201710626505.2A CN201710626505A CN109308435B CN 109308435 B CN109308435 B CN 109308435B CN 201710626505 A CN201710626505 A CN 201710626505A CN 109308435 B CN109308435 B CN 109308435B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 77
- 238000004806 packaging method and process Methods 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 40
- 239000003292 glue Substances 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1341—Sensing with light passing through the finger
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- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention provides an OLED screen body used as a light source of a fingerprint identification device and an optical fingerprint identification device, which comprise an optical sensor and the OLED screen body, wherein the optical sensor is arranged at one side far away from the light emitting surface of the OLED screen body, when a finger is pressed on the light emitting surface of the OLED screen body, light rays emitted by a light emitting area are reflected by the finger, and part of the light rays pass through the micropores and then reach the optical sensor so as to form fingerprint identification signals. The light source of the device adopts an improved OLED transparent screen body, and as the opaque material layer with the micropore structure is adopted, and the packaging area is provided with the shading structure, the interference of light rays emitted by the OLED screen body on the detector can be effectively reduced, so that the imaging is clearer.
Description
Technical Field
The invention relates to the technical field of optical fingerprint identification devices, in particular to an integrated touch type optical fingerprint identification device adopting an OLED screen as a light source.
Background
The optical fingerprint collector is a fingerprint collector needing an own light source, and at present, the light source adopts an LED light source and a light guide plate, so that the defects of low energy efficiency, uneven illumination, high assembly requirement and high cost exist.
Because the organic electroluminescent device (the english name is Organic Light Emitti ng Device, abbreviated as OLED) has the advantages of fast response, no pollution, high contrast, planarization, thinness, etc., people try to replace the LED light source in the optical fingerprint sensor with the OLED to overcome the defects when the LED light source and the light guide plate are used as the light source in the optical fingerprint sensor.
CN106156753a discloses an array substrate with fingerprint identification function, a manufacturing method thereof and a display device, the device comprises an optical induction driving unit integrated on an OLED backboard, the optical induction driving unit is used for receiving light rays emitted by an OLED light-emitting unit and reflected by the backboard through the finger valley ridges, and the line information of the finger is determined according to the light intensity of the light rays. The common OLED light source adopted by the scheme has the problems of larger signal noise and poor imaging quality when in use.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of larger signal noise, poor imaging quality and short service life in the prior art when the OLED is used as a light source of the fingerprint identification device, so as to provide the integrated touch type optical fingerprint identification device.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the OLED screen body used as a light source of the fingerprint identification device comprises a transparent substrate and a packaging cover plate, wherein the transparent substrate and the packaging cover plate form a closed space through a sealing medium, and an OLED device is arranged in the closed space in an inner layer manner; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the substrate forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the substrate through the dispensing area; a first opaque material layer is arranged outside or inside the OLED screen body at one side far away from the light emitting direction of the OLED screen body, a plurality of micropores are arranged on the first opaque material layer, and the micropores are arranged corresponding to the non-light emitting area;
the sealing medium is an opaque sealing medium, and the opaque sealing medium forms the shading structure.
A second opaque material layer is arranged between the sealing medium and the substrate and/or the packaging cover plate, and the first opaque material layer and at least one second opaque material layer are positioned on the same side far away from the light emitting direction;
the second opaque material layer forms the light shielding structure; or, the opaque sealing medium and the second opaque material layer together form the light shielding structure.
The second opaque material layer and the first opaque material layer are made of the same material and are prepared in the same layer.
The outer side and/or the inner side of the sealing medium are/is provided with a third opaque material layer;
the third opaque material layer forms the shading structure; or, the third opaque material layer and the second opaque material layer together form the light shielding structure.
The sealing medium is black UV glue.
The OLED device comprises an organic light-emitting unit and transparent conductive layers arranged on two sides of the organic light-emitting unit, a plurality of transparent insulating protrusions are arranged between the transparent conductive layers corresponding to the non-light-emitting areas, projection of the transparent insulating protrusions on a transparent substrate covers projection of the micropores on the transparent substrate, and the cross section area of the transparent insulating protrusions is slightly larger than or equal to that of the micropores.
The transparent insulating protrusion is arranged between the transparent conductive layer and the organic light-emitting unit, and the organic light-emitting unit covers the transparent insulating protrusion.
The diameter of each micropore is 10-500 um, and the distance between every two adjacent micropores is 10-10 mm.
The utility model provides an integrated optical fingerprint identification device, includes the optical inductor with the OLED screen body, the optical inductor sets up in the one side of keeping away from OLED screen body light-emitting surface, when the finger touch is pressed on the OLED screen body light-emitting surface, the light that luminous region sent is after the finger reflection, and part light passes behind the micropore reaches the optical inductor thereby forms fingerprint identification signal.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the optical fingerprint identification device provided by the invention adopts the OLED screen body as the light source, the packaging area of the screen body is provided with the shading structure, the shading structure can prevent light rays totally reflected by the OLED device packaging cover and the sealing medium from passing through the dispensing area, and the light rays penetrate through the substrate to form interference light, enter the optical sensor, and the interference light is irregular and is not easy to avoid; the OLED screen body is provided with the first opaque material layer far away from one side of its light-emitting direction, be equipped with a plurality of micropores on the first opaque material layer, the micropore intussuseption is filled with transparent insulating layer, and the luminescent layer of micropore top does not give out light, and the light that such structure can effectually block the luminous region and send out is caught by optical sensor, and the light that the luminous region sent is after meetting the finger in the light-emitting direction, is passed behind the OLED screen body by the reflection, is caught by optical sensor after passing through the micropore, consequently can effectively shield the interference of the light of luminous region to fingerprint reflection light, obtains high definition's fingerprint figure.
2. In order to ensure that the light reflected by the fingerprint is captured by the optical sensor to the greatest extent after being reflected, the diameter of the micropores is 1um-500um, and the distance between every two adjacent micropores is 10um-10mm. Through verification, the first opaque material layer adopting the design can capture fingerprint reflection light rays to the greatest extent by the optical sensor, and a high-quality fingerprint pattern is formed.
3. The cross section area of the transparent insulating bulge used as the light source of the fingerprint identification device is slightly larger than or equal to that of the micropore, so that the light rays of the light emitting area can be effectively prevented from being captured by the optical sensor in various reflection and diffuse reflection modes and the like, and the interference of the light rays of the light emitting area on the fingerprint reflected light rays can be effectively shielded, and a high-definition fingerprint pattern can be obtained.
4. Compared with the traditional fingerprint identification, the fingerprint identification device has the advantages of simple structure, low power consumption, easy assembly and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a first embodiment of an integrated optical fingerprint recognition device;
FIG. 2 is a schematic structural view of an opaque material layer;
FIG. 3 is a schematic structural diagram of a second embodiment of an integrated optical fingerprint recognition device;
FIG. 4 is a schematic structural diagram of a third embodiment of an integrated optical fingerprint recognition device;
FIG. 5 is a schematic structural diagram of a fourth embodiment of an integrated optical fingerprint recognition device;
FIG. 6 is a schematic structural diagram of a fifth embodiment of an integrated optical fingerprint recognition device;
reference numerals illustrate: 1-transparent substrate, 2-transparent anode layer, 3-organic light emitting unit, 4-transparent cathode layer, 5-packaging cover plate, 6-transparent insulating protrusion, 71-first opaque material layer, 72-second opaque material layer, 73-third opaque material layer, 9-opaque region, 10-micropore, 12-optical sensor, and 15-sealing medium.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 and fig. 2, an optical fingerprint identification device comprises an OLED screen body and an optical sensor 12, wherein the optical sensor 12 is arranged on one side far away from the light emitting surface of the OLED screen body, and comprises a transparent substrate 1, a transparent anode layer 2, an organic light emitting unit 3 and a transparent cathode layer 4 which are arranged in a superposition manner, the OLED screen body is provided with a plurality of light emitting areas and non-light emitting areas, a first opaque material layer 71 shown in fig. 3 is arranged outside or inside the screen body on one side far away from the light emitting direction of the OLED screen body, a plurality of micropores 10 are formed in the first opaque material layer 71, and the micropores 10 are correspondingly arranged with the non-light emitting areas.
The structure of the OLED screen body, the adopted materials and the thickness of each layer have no special requirements, and are all conventional choices in the field. The sensor is a conventional commercial product, and any sensor capable of detecting a finger signal and transmitting the signal can achieve the aim of the invention.
The luminous wavelength of the OLED screen body adopted by the invention is 380-760nm, preferably 500-570nm.
The optical sensor 12 used in the present invention is a conventional optical sensor, and the object of the present invention can be achieved as long as it can collect reflected light and form a fingerprint pattern.
The light source of the optical fingerprint identification device adopts an OLED screen body, and the OLED screen body has the following embodiments:
example 1
As shown in fig. 1, the optical fingerprint recognition device in this embodiment includes an OLED panel and an optical sensor 12, where the optical sensor 12 is disposed on a side far away from a light emitting surface of the OLED panel, and the light source OLED panel includes: the OLED packaging structure comprises a transparent substrate 1 and a packaging cover plate 5, wherein the transparent substrate 1 and the packaging cover plate 5 form a closed space through a sealing medium, and an OLED device is arranged in the closed space in an inner layer manner; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate 1 forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the transparent substrate through the dispensing area; in this embodiment, the sealing medium is an opaque UV glue, and the opaque sealing medium forms the light shielding structure.
The OLED device includes: a first opaque material layer 71, a transparent anode layer 2, a plurality of transparent insulating protrusions 6, an organic light emitting unit 3, a transparent cathode layer 4, and a package cover 5, which are stacked on the transparent substrate 1. As shown in fig. 3, the first opaque material layer 71 is provided with a plurality of micropores 10; the transparent insulating protrusions 6 are filled in the micropores and are arranged on the transparent anode layer 2, the transparent insulating protrusions 6 and the transparent anode layer 2 are covered by the organic light-emitting units 3, and due to the existence of the transparent insulating protrusions 6, the light-emitting materials of the organic light-emitting units above the transparent insulating protrusions do not pass through current and cannot emit light, so that a non-light-emitting area is formed.
The organic light emitting units 3 cover the transparent insulating protrusions 6 and fill gaps between adjacent transparent insulating protrusions 6, the projection of the transparent insulating protrusions 6 on the transparent substrate 1 covers the projection of the micro holes 10 on the transparent substrate 1, and the cross-sectional area of the transparent insulating protrusions 6 is equal to that of the micro holes 10.
When a finger is pressed on the light-emitting surface of the OLED screen body, the light of the light-emitting area irradiates the finger fingerprint through the transparent cathode and the packaging layer, then is reflected, passes through the packaging cover plate 5, the transparent cathode layer 4, the organic light-emitting unit 3, the transparent insulating layer (PI layer) and the first opaque material layer 71, and part of the light passes through the micropores 10 and then reaches the optical sensor 12 to form fingerprint identification signals.
The material of the first opaque material layer 71 is not particularly limited, and may be a metal layer such as Al Ag Cu or various alloys such as Mo/Al/Mo, cr/A l/Cr, etc., as long as it is opaque to light.
The shape of the micro-holes 10 of the first opaque material layer 71 is not particularly limited, and may be one or more of a circle, a hexagon, a square, a triangle, a diamond, and a pentagon.
The luminous wavelength of the OLED screen body is 500-570nm.
The diameter of each micropore is 10-500 um, and the distance between every two adjacent micropores is 10-10 mm. The diameters of the micropores herein have the following meanings: if the micropores are round, the diameter is a round diameter in the general sense; when the shape of the micropore is other shapes, the diameter is the diameter of the circumscribed circle, and when the micropore is irregularly shaped, the diameter is the direct distance between two points with the widest width of the pattern. The distance between adjacent microwells refers to the distance between the nearest two points of two adjacent microwells.
The preparation method of the OLED screen body in the embodiment is as follows:
s1, forming a first opaque material layer 71 on a transparent substrate, and then carrying out photoetching to form small holes, wherein the diameters of the small holes are 10-500 um, and the intervals between the small holes are 10-10 mm;
s2, preparing a transparent anode layer 2 on the first opaque material layer 71, forming a transparent insulating layer on the transparent anode layer 2 in a spin coating mode, and then photoetching to form transparent insulating protrusions 6, wherein the projection of the transparent insulating protrusions 6 and the micropores 10 on the transparent substrate 1 covers the projection of the micropores 10 on the transparent substrate 1, and the cross section area of the transparent insulating protrusions 6 is slightly larger than that of the micropores 10. If the diameter of the micro hole 10 is 20um, the diameter of the transparent insulating protrusion 6 is 30um;
and S3, sequentially evaporating and forming an organic light-emitting unit 3 and a transparent cathode layer 4 on the transparent anode layer 2, and packaging by using opaque UV glue.
Example 2
As shown in fig. 3, the optical fingerprint recognition device in this embodiment includes an OLED panel and an optical sensor 12, where the optical sensor 12 is disposed on a side far away from a light emitting surface of the OLED panel, and the light source OLED panel includes: the OLED packaging structure comprises a transparent substrate 1 and a packaging cover plate 5, wherein the transparent substrate 1 and the packaging cover plate 5 form a closed space through a sealing medium 15, and OLED devices are arranged in the closed space in an inner layer mode; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate 1 forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the transparent substrate through the dispensing area;
a second opaque material layer 72 is disposed between the sealing medium 15 and the transparent substrate 1, and the first opaque material layer 71 and at least one of the second opaque material layers 72 are located on the same side far away from the light emitting direction; the second opaque material layer 72 forms the light shielding structure; the second opaque material layer 72 may be the same material and prepared as the first opaque material layer 71.
As another embodiment, when the encapsulation medium is an opaque UV glue, the opaque encapsulation medium and the second opaque material layer 72 together form the light shielding structure.
Other structures are the same as those of embodiment 1, and the description of this embodiment is omitted.
Example 3
As shown in fig. 4, the optical fingerprint recognition device in this embodiment includes an OLED panel and an optical sensor 12, the optical sensor 12 is disposed at a side far away from a light emitting surface of the OLED panel, and the light source OLED panel includes: the OLED packaging structure comprises a transparent substrate 1 and a packaging cover plate 5, wherein the transparent substrate 1 and the packaging cover plate 5 form a closed space through a sealing medium 15, and OLED devices are arranged in the closed space in an inner layer mode; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate 1 forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the transparent substrate through the dispensing area;
a second opaque material layer 72 is disposed between the sealing medium 15 and the transparent substrate 1, and the first opaque material layer 71 and at least one of the second opaque material layers 72 are located on the same side far away from the light emitting direction; the second opaque material layer 72 forms the light shielding structure;
when the encapsulation medium in this embodiment is an opaque UV glue, the opaque sealing medium and the second opaque material layer 72 together form the light shielding structure.
Other structures are the same as those of embodiment 1, and the description of this embodiment is omitted.
Example 4
As shown in fig. 5, the optical fingerprint recognition device in this embodiment includes an OLED panel and an optical sensor 12, the optical sensor 12 is disposed at a side far away from a light emitting surface of the OLED panel, and the light source OLED panel includes: the OLED packaging structure comprises a transparent substrate 1 and a packaging cover plate 5, wherein the transparent substrate 1 and the packaging cover plate 5 form a closed space through a sealing medium 15, and OLED devices are arranged in the closed space in an inner layer mode; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate 1 forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the transparent substrate through the dispensing area;
an outer third layer 73 of opaque material of the sealing medium 15; the third opaque material layer 73 forms the light shielding structure;
as another embodiment, a third opaque material layer 73 is provided on the inner side of the sealing medium 15; the third opaque material layer 73 forms the light shielding structure;
as another embodiment, a second opaque material layer 72 is disposed between the sealing medium 15 and the transparent substrate 1, and the third opaque material layer 73 and the second opaque material layer 72 together form the light shielding structure.
A second opaque material layer 72 is disposed between the first opaque material layer 71 and the transparent substrate 1, and the first opaque material layer 71 and at least one second opaque material layer 72 are located on the same side far away from the light emitting direction; the second opaque material layer 72 forms the light shielding structure;
other structures are the same as those of embodiment 1, and the description of this embodiment is omitted.
Example 5
As shown in fig. 6, the optical fingerprint recognition device in this embodiment includes an OLED panel and an optical sensor 12, the optical sensor 12 is disposed at a side far away from a light emitting surface of the OLED panel, and the light source OLED panel includes: the OLED packaging structure comprises a transparent substrate 1 and a packaging cover plate 5, wherein the transparent substrate 1 and the packaging cover plate 5 form a closed space through a sealing medium 15, and OLED devices are arranged in the closed space in an inner layer mode; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate 1 forms a dispensing area, and the OLED device comprises a light-emitting area and a non-light-emitting area; the packaging area is provided with a shading structure, and the shading structure can prevent light rays of the OLED device from entering the substrate through the dispensing area; in this embodiment, the sealing medium 15 is an opaque UV glue, and the opaque sealing medium forms the light shielding structure.
The first opaque material layer 71 is disposed on a side of the transparent substrate 1 away from the transparent anode layer 2, and other structures are the same as those of embodiment 1, and the description of this embodiment is omitted.
As an embodiment, the OLED device in fig. 1 to 5 may be configured such that the first opaque material layer 71 is disposed on a side of the transparent substrate 1 away from the anode layer 2, and other structures are the same as those of example 1, which is not repeated herein.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. The OLED screen body used as a light source of the fingerprint identification device comprises a transparent substrate (1) and a packaging cover plate (5), wherein the transparent substrate (1) and the packaging cover plate (5) form a closed space through a sealing medium (15), and an OLED device is arranged in the closed space in an inner layer manner; the periphery of the closed space is a packaging area, the contact surface of the sealing medium and the transparent substrate (1) forms a dispensing area, the OLED device comprises a light-emitting area and a non-light-emitting area, and is characterized in that,
a first opaque material layer (71) is arranged outside or inside the OLED screen body at one side far away from the light emitting direction of the OLED screen body, a plurality of micropores (10) are formed in the first opaque material layer (71), and the micropores (10) are arranged corresponding to the non-light emitting areas;
the packaging area is provided with a shading structure which can prevent light rays of the OLED device from entering the transparent substrate (1) through the dispensing area;
a second opaque material layer (72) is arranged between the sealing medium (15) and the transparent substrate (1) and/or the packaging cover plate (5), and the first opaque material layer (71) and at least one second opaque material layer (72) are positioned on the same side far away from the light emitting direction;
the second opaque material layer (72) is co-layer with the first opaque material layer (71).
2. The OLED screen used as claimed in claim 1, wherein,
the sealing medium (15) is an opaque sealing medium, and the opaque sealing medium forms the shading structure; or alternatively, the first and second heat exchangers may be,
-said second layer of opaque material (72) constitutes said light shielding structure;
or, the opaque sealing medium and the second opaque material layer (72) together constitute the light shielding structure.
3. The OLED screen used as a light source of a fingerprint recognition device according to claim 2, wherein the second opaque material layer (72) is the same material as the first opaque material layer (71).
4. An OLED panel as claimed in any one of claims 1-3 for use as a light source for a fingerprint recognition device,
the outside and/or inside of the sealing medium (15) is provided with a third opaque material layer (73);
-said third layer of opaque material (73) constitutes said light shielding structure; or, the third opaque material layer (73) and the second opaque material layer (72) together form the light shielding structure.
5. The OLED screen used as claimed in claim 4, wherein the sealing medium is black UV glue.
6. The OLED screen as recited in claim 4, wherein the OLED screen is a light source for a fingerprint recognition device,
the OLED device comprises an organic light-emitting unit and transparent conductive layers arranged on two sides of the organic light-emitting unit, a plurality of transparent insulating protrusions (6) are arranged between the transparent conductive layers corresponding to the non-light-emitting areas, projection of the transparent insulating protrusions (6) on a transparent substrate (1) covers projection of the micropores (10) on the transparent substrate (1), and the cross section area of the transparent insulating protrusions (6) is slightly larger than or equal to that of the micropores (10).
7. The OLED screen used as a light source of a fingerprint recognition device according to claim 6, wherein the transparent insulating protrusions (6) are disposed between the transparent conductive layer and the organic light emitting units (3), and the organic light emitting units (3) cover the transparent insulating protrusions (6).
8. The OLED screen for use as a light source of a fingerprint recognition device according to claim 1, wherein the diameter of the micro-holes (10) is 10um-500um, and the interval between adjacent micro-holes is 10um-10mm.
9. An integrated optical fingerprint identification device, which is characterized by comprising an optical sensor (12) and the OLED screen body according to any one of claims 1-7, wherein the optical sensor (12) is arranged on one side far away from the light emitting surface of the OLED screen body, when a finger touches the light emitting surface of the OLED screen body, after being reflected by the finger, part of light emitted by a light emitting area passes through the micropores (10) and then reaches the optical sensor (12) to form a fingerprint identification signal.
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| CN201710626505.2A CN109308435B (en) | 2017-07-27 | 2017-07-27 | OLED screen body used as light source of fingerprint identification device and optical fingerprint identification device |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842232A (en) * | 2005-03-29 | 2006-10-04 | 中华映管股份有限公司 | Organic electroluminescence display panel and method for manufacturing the same |
| CN101009317A (en) * | 2006-01-27 | 2007-08-01 | 三星Sdi株式会社 | Organic light-emitting display device and method for fabricating the same |
| CN104112765A (en) * | 2014-07-17 | 2014-10-22 | 深圳市华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN204167370U (en) * | 2014-11-27 | 2015-02-18 | 信利半导体有限公司 | A kind of organic electroluminescence device |
| CN204230245U (en) * | 2014-12-09 | 2015-03-25 | 昆山国显光电有限公司 | A kind of display floater |
| CN105068689A (en) * | 2015-08-17 | 2015-11-18 | 北京搜狗科技发展有限公司 | Touch screen display apparatus and manufacturing method thereof |
| CN106022324A (en) * | 2016-08-04 | 2016-10-12 | 京东方科技集团股份有限公司 | Line recognition and display device |
| CN205845065U (en) * | 2016-05-31 | 2016-12-28 | 宸鸿科技(厦门)有限公司 | Fingeprint distinguisher |
| CN106601928A (en) * | 2016-12-02 | 2017-04-26 | 深圳市华星光电技术有限公司 | Oled display device |
| CN106708342A (en) * | 2016-12-21 | 2017-05-24 | 上海天马有机发光显示技术有限公司 | OLED touch display panel, manufacturing method and OLED touch display device |
| CN106709413A (en) * | 2015-12-31 | 2017-05-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN207068002U (en) * | 2017-07-27 | 2018-03-02 | 固安翌光科技有限公司 | OLED screen body and optical fingerprint identification device as fingerprint identification device light source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016183537A1 (en) * | 2015-05-14 | 2016-11-17 | Cross Match Technologies, Inc. | Handheld biometric scanner device |
-
2017
- 2017-07-27 CN CN201710626505.2A patent/CN109308435B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842232A (en) * | 2005-03-29 | 2006-10-04 | 中华映管股份有限公司 | Organic electroluminescence display panel and method for manufacturing the same |
| CN101009317A (en) * | 2006-01-27 | 2007-08-01 | 三星Sdi株式会社 | Organic light-emitting display device and method for fabricating the same |
| CN104112765A (en) * | 2014-07-17 | 2014-10-22 | 深圳市华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN204167370U (en) * | 2014-11-27 | 2015-02-18 | 信利半导体有限公司 | A kind of organic electroluminescence device |
| CN204230245U (en) * | 2014-12-09 | 2015-03-25 | 昆山国显光电有限公司 | A kind of display floater |
| CN105068689A (en) * | 2015-08-17 | 2015-11-18 | 北京搜狗科技发展有限公司 | Touch screen display apparatus and manufacturing method thereof |
| CN106709413A (en) * | 2015-12-31 | 2017-05-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN205845065U (en) * | 2016-05-31 | 2016-12-28 | 宸鸿科技(厦门)有限公司 | Fingeprint distinguisher |
| CN106022324A (en) * | 2016-08-04 | 2016-10-12 | 京东方科技集团股份有限公司 | Line recognition and display device |
| CN106601928A (en) * | 2016-12-02 | 2017-04-26 | 深圳市华星光电技术有限公司 | Oled display device |
| CN106708342A (en) * | 2016-12-21 | 2017-05-24 | 上海天马有机发光显示技术有限公司 | OLED touch display panel, manufacturing method and OLED touch display device |
| CN207068002U (en) * | 2017-07-27 | 2018-03-02 | 固安翌光科技有限公司 | OLED screen body and optical fingerprint identification device as fingerprint identification device light source |
Non-Patent Citations (1)
| Title |
|---|
| 李丽等.基于超球覆盖仿生模式识别的指纹点名系统.《上海师范大学学报（自然科学版）》.2015,第44卷(第1期),81-87. * |
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